Audi 100 '89 No Power.
#11
Guest
Posts: n/a
Re: Audi 100 '89 No Power.
Thank you all for your responses. It is my first time asking for help
through an internet group and I truly appreciate the quick response.
Some of the ideas I have already tried or considered but some of the
suggestions I haven't tried yet and the information is very useful to
me. I will not be able to work on the car in the next couple of days
but when I do, I will let you know what I have accomplished.
Thank you again,
Andre
Steve Sears wrote:
> Andre,
> Please say that you have pulled the diagnostic codes from the engine control
> unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> buy/replace parts without using the onboard diagnostic first.
> Failing that, could you have an obstruction in the exhaust system, like a
> plugged catylitic converter? - try disconnecting the exhaust before the cat
> and seeing if the power returns - the car will be super loud, which,
> apparently, is cool these days
> Scott Mockry's site is an excellent one to review for trouble shooting - so
> is www.audifans.com and the newsgroups at www.audiworld.com
> Cheers!
> Steve Sears
> 1987 Audi 5kTQ
> 1980 Audi 5k
> 1962 and '64 Auto Union DKW Junior deLuxes
> (SPAM Blocker NOTE: Remove SHOES to reply)
>
>
>
> "Andre" <andrez83@hotmail.com> wrote in message
> news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > Hi,
> >
> > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > while my wife was driving uphill and was changing to a lower gear.
> > This happened about 3 years ago.
> >
> > Description of problem:
> > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > firing during idle and attempted ride on the road.
> > - It always starts OK even after not being started for months.
> > - When I try to rev up the engine the car struggles to increase the
> > RPM, however when I release my foot from the gas pedal the RPM seems to
> > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > high, as high as I want to.
> > - I sometimes attempt to drive the car but it has consistently very
> > low power!!!
> >
> > I have been trying to get to the bottom of the problem with no luck
> > trying various things over the last three years.
> > I have done the following (don't remember all the things I've done):
> > - replaced fuel filter,
> > - cleaned air filter,
> > - tried different spark plugs, cables, distributor cap
> > - I have looked extensively for a bad ground connection. I have
> > actually had a problem with my 85Audi5000 which closely resembled this
> > one where the problem was a broken ground wire.
> > - I have checked various wiring from the Fuel injection Control unit
> > and from the Ignition Control Unit.
> > - I have removed the ICV and made sure it is not stuck
> > - I have looked extensively for vacuum leaks.
> >
> > The problem has never budged. The problem happened from one second to
> > the next and subsequently never subsided regardless of which cables I
> > touched while the engine was running.
> >
> > I hope that someone has seen such problem before and had more luck than
> > me dealing with the problem.
> >
> > Thank you for any hints or advice,
> >
> > Andre
> >
through an internet group and I truly appreciate the quick response.
Some of the ideas I have already tried or considered but some of the
suggestions I haven't tried yet and the information is very useful to
me. I will not be able to work on the car in the next couple of days
but when I do, I will let you know what I have accomplished.
Thank you again,
Andre
Steve Sears wrote:
> Andre,
> Please say that you have pulled the diagnostic codes from the engine control
> unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> buy/replace parts without using the onboard diagnostic first.
> Failing that, could you have an obstruction in the exhaust system, like a
> plugged catylitic converter? - try disconnecting the exhaust before the cat
> and seeing if the power returns - the car will be super loud, which,
> apparently, is cool these days
> Scott Mockry's site is an excellent one to review for trouble shooting - so
> is www.audifans.com and the newsgroups at www.audiworld.com
> Cheers!
> Steve Sears
> 1987 Audi 5kTQ
> 1980 Audi 5k
> 1962 and '64 Auto Union DKW Junior deLuxes
> (SPAM Blocker NOTE: Remove SHOES to reply)
>
>
>
> "Andre" <andrez83@hotmail.com> wrote in message
> news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > Hi,
> >
> > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > while my wife was driving uphill and was changing to a lower gear.
> > This happened about 3 years ago.
> >
> > Description of problem:
> > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > firing during idle and attempted ride on the road.
> > - It always starts OK even after not being started for months.
> > - When I try to rev up the engine the car struggles to increase the
> > RPM, however when I release my foot from the gas pedal the RPM seems to
> > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > high, as high as I want to.
> > - I sometimes attempt to drive the car but it has consistently very
> > low power!!!
> >
> > I have been trying to get to the bottom of the problem with no luck
> > trying various things over the last three years.
> > I have done the following (don't remember all the things I've done):
> > - replaced fuel filter,
> > - cleaned air filter,
> > - tried different spark plugs, cables, distributor cap
> > - I have looked extensively for a bad ground connection. I have
> > actually had a problem with my 85Audi5000 which closely resembled this
> > one where the problem was a broken ground wire.
> > - I have checked various wiring from the Fuel injection Control unit
> > and from the Ignition Control Unit.
> > - I have removed the ICV and made sure it is not stuck
> > - I have looked extensively for vacuum leaks.
> >
> > The problem has never budged. The problem happened from one second to
> > the next and subsequently never subsided regardless of which cables I
> > touched while the engine was running.
> >
> > I hope that someone has seen such problem before and had more luck than
> > me dealing with the problem.
> >
> > Thank you for any hints or advice,
> >
> > Andre
> >
#12
Guest
Posts: n/a
Re: Audi 100 '89 No Power.
Thank you all for your responses. It is my first time asking for help
through an internet group and I truly appreciate the quick response.
Some of the ideas I have already tried or considered but some of the
suggestions I haven't tried yet and the information is very useful to
me. I will not be able to work on the car in the next couple of days
but when I do, I will let you know what I have accomplished.
Thank you again,
Andre
Steve Sears wrote:
> Andre,
> Please say that you have pulled the diagnostic codes from the engine control
> unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> buy/replace parts without using the onboard diagnostic first.
> Failing that, could you have an obstruction in the exhaust system, like a
> plugged catylitic converter? - try disconnecting the exhaust before the cat
> and seeing if the power returns - the car will be super loud, which,
> apparently, is cool these days
> Scott Mockry's site is an excellent one to review for trouble shooting - so
> is www.audifans.com and the newsgroups at www.audiworld.com
> Cheers!
> Steve Sears
> 1987 Audi 5kTQ
> 1980 Audi 5k
> 1962 and '64 Auto Union DKW Junior deLuxes
> (SPAM Blocker NOTE: Remove SHOES to reply)
>
>
>
> "Andre" <andrez83@hotmail.com> wrote in message
> news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > Hi,
> >
> > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > while my wife was driving uphill and was changing to a lower gear.
> > This happened about 3 years ago.
> >
> > Description of problem:
> > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > firing during idle and attempted ride on the road.
> > - It always starts OK even after not being started for months.
> > - When I try to rev up the engine the car struggles to increase the
> > RPM, however when I release my foot from the gas pedal the RPM seems to
> > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > high, as high as I want to.
> > - I sometimes attempt to drive the car but it has consistently very
> > low power!!!
> >
> > I have been trying to get to the bottom of the problem with no luck
> > trying various things over the last three years.
> > I have done the following (don't remember all the things I've done):
> > - replaced fuel filter,
> > - cleaned air filter,
> > - tried different spark plugs, cables, distributor cap
> > - I have looked extensively for a bad ground connection. I have
> > actually had a problem with my 85Audi5000 which closely resembled this
> > one where the problem was a broken ground wire.
> > - I have checked various wiring from the Fuel injection Control unit
> > and from the Ignition Control Unit.
> > - I have removed the ICV and made sure it is not stuck
> > - I have looked extensively for vacuum leaks.
> >
> > The problem has never budged. The problem happened from one second to
> > the next and subsequently never subsided regardless of which cables I
> > touched while the engine was running.
> >
> > I hope that someone has seen such problem before and had more luck than
> > me dealing with the problem.
> >
> > Thank you for any hints or advice,
> >
> > Andre
> >
through an internet group and I truly appreciate the quick response.
Some of the ideas I have already tried or considered but some of the
suggestions I haven't tried yet and the information is very useful to
me. I will not be able to work on the car in the next couple of days
but when I do, I will let you know what I have accomplished.
Thank you again,
Andre
Steve Sears wrote:
> Andre,
> Please say that you have pulled the diagnostic codes from the engine control
> unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> buy/replace parts without using the onboard diagnostic first.
> Failing that, could you have an obstruction in the exhaust system, like a
> plugged catylitic converter? - try disconnecting the exhaust before the cat
> and seeing if the power returns - the car will be super loud, which,
> apparently, is cool these days
> Scott Mockry's site is an excellent one to review for trouble shooting - so
> is www.audifans.com and the newsgroups at www.audiworld.com
> Cheers!
> Steve Sears
> 1987 Audi 5kTQ
> 1980 Audi 5k
> 1962 and '64 Auto Union DKW Junior deLuxes
> (SPAM Blocker NOTE: Remove SHOES to reply)
>
>
>
> "Andre" <andrez83@hotmail.com> wrote in message
> news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > Hi,
> >
> > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > while my wife was driving uphill and was changing to a lower gear.
> > This happened about 3 years ago.
> >
> > Description of problem:
> > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > firing during idle and attempted ride on the road.
> > - It always starts OK even after not being started for months.
> > - When I try to rev up the engine the car struggles to increase the
> > RPM, however when I release my foot from the gas pedal the RPM seems to
> > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > high, as high as I want to.
> > - I sometimes attempt to drive the car but it has consistently very
> > low power!!!
> >
> > I have been trying to get to the bottom of the problem with no luck
> > trying various things over the last three years.
> > I have done the following (don't remember all the things I've done):
> > - replaced fuel filter,
> > - cleaned air filter,
> > - tried different spark plugs, cables, distributor cap
> > - I have looked extensively for a bad ground connection. I have
> > actually had a problem with my 85Audi5000 which closely resembled this
> > one where the problem was a broken ground wire.
> > - I have checked various wiring from the Fuel injection Control unit
> > and from the Ignition Control Unit.
> > - I have removed the ICV and made sure it is not stuck
> > - I have looked extensively for vacuum leaks.
> >
> > The problem has never budged. The problem happened from one second to
> > the next and subsequently never subsided regardless of which cables I
> > touched while the engine was running.
> >
> > I hope that someone has seen such problem before and had more luck than
> > me dealing with the problem.
> >
> > Thank you for any hints or advice,
> >
> > Andre
> >
#13
Guest
Posts: n/a
Re: Audi 100 '89 No Power.
Thank you all for your responses. It is my first time asking for help
through an internet group and I truly appreciate the quick response.
Some of the ideas I have already tried or considered but some of the
suggestions I haven't tried yet and the information is very useful to
me. I will not be able to work on the car in the next couple of days
but when I do, I will let you know what I have accomplished.
Thank you again,
Andre
Steve Sears wrote:
> Andre,
> Please say that you have pulled the diagnostic codes from the engine control
> unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> buy/replace parts without using the onboard diagnostic first.
> Failing that, could you have an obstruction in the exhaust system, like a
> plugged catylitic converter? - try disconnecting the exhaust before the cat
> and seeing if the power returns - the car will be super loud, which,
> apparently, is cool these days
> Scott Mockry's site is an excellent one to review for trouble shooting - so
> is www.audifans.com and the newsgroups at www.audiworld.com
> Cheers!
> Steve Sears
> 1987 Audi 5kTQ
> 1980 Audi 5k
> 1962 and '64 Auto Union DKW Junior deLuxes
> (SPAM Blocker NOTE: Remove SHOES to reply)
>
>
>
> "Andre" <andrez83@hotmail.com> wrote in message
> news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > Hi,
> >
> > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > while my wife was driving uphill and was changing to a lower gear.
> > This happened about 3 years ago.
> >
> > Description of problem:
> > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > firing during idle and attempted ride on the road.
> > - It always starts OK even after not being started for months.
> > - When I try to rev up the engine the car struggles to increase the
> > RPM, however when I release my foot from the gas pedal the RPM seems to
> > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > high, as high as I want to.
> > - I sometimes attempt to drive the car but it has consistently very
> > low power!!!
> >
> > I have been trying to get to the bottom of the problem with no luck
> > trying various things over the last three years.
> > I have done the following (don't remember all the things I've done):
> > - replaced fuel filter,
> > - cleaned air filter,
> > - tried different spark plugs, cables, distributor cap
> > - I have looked extensively for a bad ground connection. I have
> > actually had a problem with my 85Audi5000 which closely resembled this
> > one where the problem was a broken ground wire.
> > - I have checked various wiring from the Fuel injection Control unit
> > and from the Ignition Control Unit.
> > - I have removed the ICV and made sure it is not stuck
> > - I have looked extensively for vacuum leaks.
> >
> > The problem has never budged. The problem happened from one second to
> > the next and subsequently never subsided regardless of which cables I
> > touched while the engine was running.
> >
> > I hope that someone has seen such problem before and had more luck than
> > me dealing with the problem.
> >
> > Thank you for any hints or advice,
> >
> > Andre
> >
through an internet group and I truly appreciate the quick response.
Some of the ideas I have already tried or considered but some of the
suggestions I haven't tried yet and the information is very useful to
me. I will not be able to work on the car in the next couple of days
but when I do, I will let you know what I have accomplished.
Thank you again,
Andre
Steve Sears wrote:
> Andre,
> Please say that you have pulled the diagnostic codes from the engine control
> unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> buy/replace parts without using the onboard diagnostic first.
> Failing that, could you have an obstruction in the exhaust system, like a
> plugged catylitic converter? - try disconnecting the exhaust before the cat
> and seeing if the power returns - the car will be super loud, which,
> apparently, is cool these days
> Scott Mockry's site is an excellent one to review for trouble shooting - so
> is www.audifans.com and the newsgroups at www.audiworld.com
> Cheers!
> Steve Sears
> 1987 Audi 5kTQ
> 1980 Audi 5k
> 1962 and '64 Auto Union DKW Junior deLuxes
> (SPAM Blocker NOTE: Remove SHOES to reply)
>
>
>
> "Andre" <andrez83@hotmail.com> wrote in message
> news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > Hi,
> >
> > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > while my wife was driving uphill and was changing to a lower gear.
> > This happened about 3 years ago.
> >
> > Description of problem:
> > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > firing during idle and attempted ride on the road.
> > - It always starts OK even after not being started for months.
> > - When I try to rev up the engine the car struggles to increase the
> > RPM, however when I release my foot from the gas pedal the RPM seems to
> > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > high, as high as I want to.
> > - I sometimes attempt to drive the car but it has consistently very
> > low power!!!
> >
> > I have been trying to get to the bottom of the problem with no luck
> > trying various things over the last three years.
> > I have done the following (don't remember all the things I've done):
> > - replaced fuel filter,
> > - cleaned air filter,
> > - tried different spark plugs, cables, distributor cap
> > - I have looked extensively for a bad ground connection. I have
> > actually had a problem with my 85Audi5000 which closely resembled this
> > one where the problem was a broken ground wire.
> > - I have checked various wiring from the Fuel injection Control unit
> > and from the Ignition Control Unit.
> > - I have removed the ICV and made sure it is not stuck
> > - I have looked extensively for vacuum leaks.
> >
> > The problem has never budged. The problem happened from one second to
> > the next and subsequently never subsided regardless of which cables I
> > touched while the engine was running.
> >
> > I hope that someone has seen such problem before and had more luck than
> > me dealing with the problem.
> >
> > Thank you for any hints or advice,
> >
> > Andre
> >
#14
Guest
Posts: n/a
Re: Audi 100 '89 No Power.
Since the engine appears to be missing on 1 or 2 cylinders, the first
order of business is to determine which cylinders are missing. Using
an insulated spark plug wire puller and with the engine running remove
one wire at a time to determine which cylinder(s) are dead. Once you
have determine which cylinder(s) are dead remove the spark plug and
inspect them. If the are really black with soot then you have a fuel
problem (way too much fuel), but if they clean and wet with gas then
you have an ignition problem.
Andre wrote:
> Thank you all for your responses. It is my first time asking for help
> through an internet group and I truly appreciate the quick response.
> Some of the ideas I have already tried or considered but some of the
> suggestions I haven't tried yet and the information is very useful to
> me. I will not be able to work on the car in the next couple of days
> but when I do, I will let you know what I have accomplished.
>
> Thank you again,
>
> Andre
>
>
> Steve Sears wrote:
> > Andre,
> > Please say that you have pulled the diagnostic codes from the engine control
> > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > buy/replace parts without using the onboard diagnostic first.
> > Failing that, could you have an obstruction in the exhaust system, like a
> > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > and seeing if the power returns - the car will be super loud, which,
> > apparently, is cool these days
> > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > is www.audifans.com and the newsgroups at www.audiworld.com
> > Cheers!
> > Steve Sears
> > 1987 Audi 5kTQ
> > 1980 Audi 5k
> > 1962 and '64 Auto Union DKW Junior deLuxes
> > (SPAM Blocker NOTE: Remove SHOES to reply)
> >
> >
> >
> > "Andre" <andrez83@hotmail.com> wrote in message
> > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > Hi,
> > >
> > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > while my wife was driving uphill and was changing to a lower gear.
> > > This happened about 3 years ago.
> > >
> > > Description of problem:
> > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > firing during idle and attempted ride on the road.
> > > - It always starts OK even after not being started for months.
> > > - When I try to rev up the engine the car struggles to increase the
> > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > high, as high as I want to.
> > > - I sometimes attempt to drive the car but it has consistently very
> > > low power!!!
> > >
> > > I have been trying to get to the bottom of the problem with no luck
> > > trying various things over the last three years.
> > > I have done the following (don't remember all the things I've done):
> > > - replaced fuel filter,
> > > - cleaned air filter,
> > > - tried different spark plugs, cables, distributor cap
> > > - I have looked extensively for a bad ground connection. I have
> > > actually had a problem with my 85Audi5000 which closely resembled this
> > > one where the problem was a broken ground wire.
> > > - I have checked various wiring from the Fuel injection Control unit
> > > and from the Ignition Control Unit.
> > > - I have removed the ICV and made sure it is not stuck
> > > - I have looked extensively for vacuum leaks.
> > >
> > > The problem has never budged. The problem happened from one second to
> > > the next and subsequently never subsided regardless of which cables I
> > > touched while the engine was running.
> > >
> > > I hope that someone has seen such problem before and had more luck than
> > > me dealing with the problem.
> > >
> > > Thank you for any hints or advice,
> > >
> > > Andre
> > >
order of business is to determine which cylinders are missing. Using
an insulated spark plug wire puller and with the engine running remove
one wire at a time to determine which cylinder(s) are dead. Once you
have determine which cylinder(s) are dead remove the spark plug and
inspect them. If the are really black with soot then you have a fuel
problem (way too much fuel), but if they clean and wet with gas then
you have an ignition problem.
Andre wrote:
> Thank you all for your responses. It is my first time asking for help
> through an internet group and I truly appreciate the quick response.
> Some of the ideas I have already tried or considered but some of the
> suggestions I haven't tried yet and the information is very useful to
> me. I will not be able to work on the car in the next couple of days
> but when I do, I will let you know what I have accomplished.
>
> Thank you again,
>
> Andre
>
>
> Steve Sears wrote:
> > Andre,
> > Please say that you have pulled the diagnostic codes from the engine control
> > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > buy/replace parts without using the onboard diagnostic first.
> > Failing that, could you have an obstruction in the exhaust system, like a
> > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > and seeing if the power returns - the car will be super loud, which,
> > apparently, is cool these days
> > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > is www.audifans.com and the newsgroups at www.audiworld.com
> > Cheers!
> > Steve Sears
> > 1987 Audi 5kTQ
> > 1980 Audi 5k
> > 1962 and '64 Auto Union DKW Junior deLuxes
> > (SPAM Blocker NOTE: Remove SHOES to reply)
> >
> >
> >
> > "Andre" <andrez83@hotmail.com> wrote in message
> > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > Hi,
> > >
> > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > while my wife was driving uphill and was changing to a lower gear.
> > > This happened about 3 years ago.
> > >
> > > Description of problem:
> > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > firing during idle and attempted ride on the road.
> > > - It always starts OK even after not being started for months.
> > > - When I try to rev up the engine the car struggles to increase the
> > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > high, as high as I want to.
> > > - I sometimes attempt to drive the car but it has consistently very
> > > low power!!!
> > >
> > > I have been trying to get to the bottom of the problem with no luck
> > > trying various things over the last three years.
> > > I have done the following (don't remember all the things I've done):
> > > - replaced fuel filter,
> > > - cleaned air filter,
> > > - tried different spark plugs, cables, distributor cap
> > > - I have looked extensively for a bad ground connection. I have
> > > actually had a problem with my 85Audi5000 which closely resembled this
> > > one where the problem was a broken ground wire.
> > > - I have checked various wiring from the Fuel injection Control unit
> > > and from the Ignition Control Unit.
> > > - I have removed the ICV and made sure it is not stuck
> > > - I have looked extensively for vacuum leaks.
> > >
> > > The problem has never budged. The problem happened from one second to
> > > the next and subsequently never subsided regardless of which cables I
> > > touched while the engine was running.
> > >
> > > I hope that someone has seen such problem before and had more luck than
> > > me dealing with the problem.
> > >
> > > Thank you for any hints or advice,
> > >
> > > Andre
> > >
#15
Guest
Posts: n/a
Re: Audi 100 '89 No Power.
Since the engine appears to be missing on 1 or 2 cylinders, the first
order of business is to determine which cylinders are missing. Using
an insulated spark plug wire puller and with the engine running remove
one wire at a time to determine which cylinder(s) are dead. Once you
have determine which cylinder(s) are dead remove the spark plug and
inspect them. If the are really black with soot then you have a fuel
problem (way too much fuel), but if they clean and wet with gas then
you have an ignition problem.
Andre wrote:
> Thank you all for your responses. It is my first time asking for help
> through an internet group and I truly appreciate the quick response.
> Some of the ideas I have already tried or considered but some of the
> suggestions I haven't tried yet and the information is very useful to
> me. I will not be able to work on the car in the next couple of days
> but when I do, I will let you know what I have accomplished.
>
> Thank you again,
>
> Andre
>
>
> Steve Sears wrote:
> > Andre,
> > Please say that you have pulled the diagnostic codes from the engine control
> > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > buy/replace parts without using the onboard diagnostic first.
> > Failing that, could you have an obstruction in the exhaust system, like a
> > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > and seeing if the power returns - the car will be super loud, which,
> > apparently, is cool these days
> > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > is www.audifans.com and the newsgroups at www.audiworld.com
> > Cheers!
> > Steve Sears
> > 1987 Audi 5kTQ
> > 1980 Audi 5k
> > 1962 and '64 Auto Union DKW Junior deLuxes
> > (SPAM Blocker NOTE: Remove SHOES to reply)
> >
> >
> >
> > "Andre" <andrez83@hotmail.com> wrote in message
> > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > Hi,
> > >
> > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > while my wife was driving uphill and was changing to a lower gear.
> > > This happened about 3 years ago.
> > >
> > > Description of problem:
> > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > firing during idle and attempted ride on the road.
> > > - It always starts OK even after not being started for months.
> > > - When I try to rev up the engine the car struggles to increase the
> > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > high, as high as I want to.
> > > - I sometimes attempt to drive the car but it has consistently very
> > > low power!!!
> > >
> > > I have been trying to get to the bottom of the problem with no luck
> > > trying various things over the last three years.
> > > I have done the following (don't remember all the things I've done):
> > > - replaced fuel filter,
> > > - cleaned air filter,
> > > - tried different spark plugs, cables, distributor cap
> > > - I have looked extensively for a bad ground connection. I have
> > > actually had a problem with my 85Audi5000 which closely resembled this
> > > one where the problem was a broken ground wire.
> > > - I have checked various wiring from the Fuel injection Control unit
> > > and from the Ignition Control Unit.
> > > - I have removed the ICV and made sure it is not stuck
> > > - I have looked extensively for vacuum leaks.
> > >
> > > The problem has never budged. The problem happened from one second to
> > > the next and subsequently never subsided regardless of which cables I
> > > touched while the engine was running.
> > >
> > > I hope that someone has seen such problem before and had more luck than
> > > me dealing with the problem.
> > >
> > > Thank you for any hints or advice,
> > >
> > > Andre
> > >
order of business is to determine which cylinders are missing. Using
an insulated spark plug wire puller and with the engine running remove
one wire at a time to determine which cylinder(s) are dead. Once you
have determine which cylinder(s) are dead remove the spark plug and
inspect them. If the are really black with soot then you have a fuel
problem (way too much fuel), but if they clean and wet with gas then
you have an ignition problem.
Andre wrote:
> Thank you all for your responses. It is my first time asking for help
> through an internet group and I truly appreciate the quick response.
> Some of the ideas I have already tried or considered but some of the
> suggestions I haven't tried yet and the information is very useful to
> me. I will not be able to work on the car in the next couple of days
> but when I do, I will let you know what I have accomplished.
>
> Thank you again,
>
> Andre
>
>
> Steve Sears wrote:
> > Andre,
> > Please say that you have pulled the diagnostic codes from the engine control
> > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > buy/replace parts without using the onboard diagnostic first.
> > Failing that, could you have an obstruction in the exhaust system, like a
> > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > and seeing if the power returns - the car will be super loud, which,
> > apparently, is cool these days
> > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > is www.audifans.com and the newsgroups at www.audiworld.com
> > Cheers!
> > Steve Sears
> > 1987 Audi 5kTQ
> > 1980 Audi 5k
> > 1962 and '64 Auto Union DKW Junior deLuxes
> > (SPAM Blocker NOTE: Remove SHOES to reply)
> >
> >
> >
> > "Andre" <andrez83@hotmail.com> wrote in message
> > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > Hi,
> > >
> > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > while my wife was driving uphill and was changing to a lower gear.
> > > This happened about 3 years ago.
> > >
> > > Description of problem:
> > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > firing during idle and attempted ride on the road.
> > > - It always starts OK even after not being started for months.
> > > - When I try to rev up the engine the car struggles to increase the
> > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > high, as high as I want to.
> > > - I sometimes attempt to drive the car but it has consistently very
> > > low power!!!
> > >
> > > I have been trying to get to the bottom of the problem with no luck
> > > trying various things over the last three years.
> > > I have done the following (don't remember all the things I've done):
> > > - replaced fuel filter,
> > > - cleaned air filter,
> > > - tried different spark plugs, cables, distributor cap
> > > - I have looked extensively for a bad ground connection. I have
> > > actually had a problem with my 85Audi5000 which closely resembled this
> > > one where the problem was a broken ground wire.
> > > - I have checked various wiring from the Fuel injection Control unit
> > > and from the Ignition Control Unit.
> > > - I have removed the ICV and made sure it is not stuck
> > > - I have looked extensively for vacuum leaks.
> > >
> > > The problem has never budged. The problem happened from one second to
> > > the next and subsequently never subsided regardless of which cables I
> > > touched while the engine was running.
> > >
> > > I hope that someone has seen such problem before and had more luck than
> > > me dealing with the problem.
> > >
> > > Thank you for any hints or advice,
> > >
> > > Andre
> > >
#16
Guest
Posts: n/a
Re: Audi 100 '89 No Power.
Since the engine appears to be missing on 1 or 2 cylinders, the first
order of business is to determine which cylinders are missing. Using
an insulated spark plug wire puller and with the engine running remove
one wire at a time to determine which cylinder(s) are dead. Once you
have determine which cylinder(s) are dead remove the spark plug and
inspect them. If the are really black with soot then you have a fuel
problem (way too much fuel), but if they clean and wet with gas then
you have an ignition problem.
Andre wrote:
> Thank you all for your responses. It is my first time asking for help
> through an internet group and I truly appreciate the quick response.
> Some of the ideas I have already tried or considered but some of the
> suggestions I haven't tried yet and the information is very useful to
> me. I will not be able to work on the car in the next couple of days
> but when I do, I will let you know what I have accomplished.
>
> Thank you again,
>
> Andre
>
>
> Steve Sears wrote:
> > Andre,
> > Please say that you have pulled the diagnostic codes from the engine control
> > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > buy/replace parts without using the onboard diagnostic first.
> > Failing that, could you have an obstruction in the exhaust system, like a
> > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > and seeing if the power returns - the car will be super loud, which,
> > apparently, is cool these days
> > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > is www.audifans.com and the newsgroups at www.audiworld.com
> > Cheers!
> > Steve Sears
> > 1987 Audi 5kTQ
> > 1980 Audi 5k
> > 1962 and '64 Auto Union DKW Junior deLuxes
> > (SPAM Blocker NOTE: Remove SHOES to reply)
> >
> >
> >
> > "Andre" <andrez83@hotmail.com> wrote in message
> > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > Hi,
> > >
> > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > while my wife was driving uphill and was changing to a lower gear.
> > > This happened about 3 years ago.
> > >
> > > Description of problem:
> > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > firing during idle and attempted ride on the road.
> > > - It always starts OK even after not being started for months.
> > > - When I try to rev up the engine the car struggles to increase the
> > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > high, as high as I want to.
> > > - I sometimes attempt to drive the car but it has consistently very
> > > low power!!!
> > >
> > > I have been trying to get to the bottom of the problem with no luck
> > > trying various things over the last three years.
> > > I have done the following (don't remember all the things I've done):
> > > - replaced fuel filter,
> > > - cleaned air filter,
> > > - tried different spark plugs, cables, distributor cap
> > > - I have looked extensively for a bad ground connection. I have
> > > actually had a problem with my 85Audi5000 which closely resembled this
> > > one where the problem was a broken ground wire.
> > > - I have checked various wiring from the Fuel injection Control unit
> > > and from the Ignition Control Unit.
> > > - I have removed the ICV and made sure it is not stuck
> > > - I have looked extensively for vacuum leaks.
> > >
> > > The problem has never budged. The problem happened from one second to
> > > the next and subsequently never subsided regardless of which cables I
> > > touched while the engine was running.
> > >
> > > I hope that someone has seen such problem before and had more luck than
> > > me dealing with the problem.
> > >
> > > Thank you for any hints or advice,
> > >
> > > Andre
> > >
order of business is to determine which cylinders are missing. Using
an insulated spark plug wire puller and with the engine running remove
one wire at a time to determine which cylinder(s) are dead. Once you
have determine which cylinder(s) are dead remove the spark plug and
inspect them. If the are really black with soot then you have a fuel
problem (way too much fuel), but if they clean and wet with gas then
you have an ignition problem.
Andre wrote:
> Thank you all for your responses. It is my first time asking for help
> through an internet group and I truly appreciate the quick response.
> Some of the ideas I have already tried or considered but some of the
> suggestions I haven't tried yet and the information is very useful to
> me. I will not be able to work on the car in the next couple of days
> but when I do, I will let you know what I have accomplished.
>
> Thank you again,
>
> Andre
>
>
> Steve Sears wrote:
> > Andre,
> > Please say that you have pulled the diagnostic codes from the engine control
> > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > buy/replace parts without using the onboard diagnostic first.
> > Failing that, could you have an obstruction in the exhaust system, like a
> > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > and seeing if the power returns - the car will be super loud, which,
> > apparently, is cool these days
> > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > is www.audifans.com and the newsgroups at www.audiworld.com
> > Cheers!
> > Steve Sears
> > 1987 Audi 5kTQ
> > 1980 Audi 5k
> > 1962 and '64 Auto Union DKW Junior deLuxes
> > (SPAM Blocker NOTE: Remove SHOES to reply)
> >
> >
> >
> > "Andre" <andrez83@hotmail.com> wrote in message
> > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > Hi,
> > >
> > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > while my wife was driving uphill and was changing to a lower gear.
> > > This happened about 3 years ago.
> > >
> > > Description of problem:
> > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > firing during idle and attempted ride on the road.
> > > - It always starts OK even after not being started for months.
> > > - When I try to rev up the engine the car struggles to increase the
> > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > high, as high as I want to.
> > > - I sometimes attempt to drive the car but it has consistently very
> > > low power!!!
> > >
> > > I have been trying to get to the bottom of the problem with no luck
> > > trying various things over the last three years.
> > > I have done the following (don't remember all the things I've done):
> > > - replaced fuel filter,
> > > - cleaned air filter,
> > > - tried different spark plugs, cables, distributor cap
> > > - I have looked extensively for a bad ground connection. I have
> > > actually had a problem with my 85Audi5000 which closely resembled this
> > > one where the problem was a broken ground wire.
> > > - I have checked various wiring from the Fuel injection Control unit
> > > and from the Ignition Control Unit.
> > > - I have removed the ICV and made sure it is not stuck
> > > - I have looked extensively for vacuum leaks.
> > >
> > > The problem has never budged. The problem happened from one second to
> > > the next and subsequently never subsided regardless of which cables I
> > > touched while the engine was running.
> > >
> > > I hope that someone has seen such problem before and had more luck than
> > > me dealing with the problem.
> > >
> > > Thank you for any hints or advice,
> > >
> > > Andre
> > >
#17
Guest
Posts: n/a
Re: Audi 100 '89 No Power.
After reading all the responses my primary suspect right now is in the
area of ignition with the ignition coil topping the list.
e-mail#6 reinforces my theory. My brother has at some point tried to
investigate the cylinders that are misfiring. It was not clear that
these were always the same cylinders. We replaced a spark plug in
cylinder #1 which seemed to make no contribution to running the engine
(pulling cable #1 didn't make a difference). Replacing the spark
plug seemed to help but not for long. In any case I do remember that
the spark plug was wet rather than covered with cids.
I have also tried to read the codes using an LED jig that I made. The
readings were not consistent. At one point a bunch of codes were
reported but none led me anywhere. One of them was a "full throttle
switch failure". I checked the switch and the wiring and couldn't
detect any failure.
Unfortunately this weekend doesn't look too good for me in terms of
having time "for my Audi 100". I will keep you posted of any
progress I will be able to make with this car.
The car is in good condition (apart from the problem of course) and it
is a niec editions of that model, leather seats and all... I am rather
determined to put this car back on the road.
Many Thanks,
Andre
upallnight-two wrote:
> Since the engine appears to be missing on 1 or 2 cylinders, the first
> order of business is to determine which cylinders are missing. Using
> an insulated spark plug wire puller and with the engine running remove
> one wire at a time to determine which cylinder(s) are dead. Once you
> have determine which cylinder(s) are dead remove the spark plug and
> inspect them. If the are really black with soot then you have a fuel
> problem (way too much fuel), but if they clean and wet with gas then
> you have an ignition problem.
>
>
> Andre wrote:
> > Thank you all for your responses. It is my first time asking for help
> > through an internet group and I truly appreciate the quick response.
> > Some of the ideas I have already tried or considered but some of the
> > suggestions I haven't tried yet and the information is very useful to
> > me. I will not be able to work on the car in the next couple of days
> > but when I do, I will let you know what I have accomplished.
> >
> > Thank you again,
> >
> > Andre
> >
> >
> > Steve Sears wrote:
> > > Andre,
> > > Please say that you have pulled the diagnostic codes from the engine control
> > > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > > buy/replace parts without using the onboard diagnostic first.
> > > Failing that, could you have an obstruction in the exhaust system, like a
> > > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > > and seeing if the power returns - the car will be super loud, which,
> > > apparently, is cool these days
> > > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > > is www.audifans.com and the newsgroups at www.audiworld.com
> > > Cheers!
> > > Steve Sears
> > > 1987 Audi 5kTQ
> > > 1980 Audi 5k
> > > 1962 and '64 Auto Union DKW Junior deLuxes
> > > (SPAM Blocker NOTE: Remove SHOES to reply)
> > >
> > >
> > >
> > > "Andre" <andrez83@hotmail.com> wrote in message
> > > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > > Hi,
> > > >
> > > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > > while my wife was driving uphill and was changing to a lower gear.
> > > > This happened about 3 years ago.
> > > >
> > > > Description of problem:
> > > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > > firing during idle and attempted ride on the road.
> > > > - It always starts OK even after not being started for months.
> > > > - When I try to rev up the engine the car struggles to increase the
> > > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > > high, as high as I want to.
> > > > - I sometimes attempt to drive the car but it has consistently very
> > > > low power!!!
> > > >
> > > > I have been trying to get to the bottom of the problem with no luck
> > > > trying various things over the last three years.
> > > > I have done the following (don't remember all the things I've done):
> > > > - replaced fuel filter,
> > > > - cleaned air filter,
> > > > - tried different spark plugs, cables, distributor cap
> > > > - I have looked extensively for a bad ground connection. I have
> > > > actually had a problem with my 85Audi5000 which closely resembled this
> > > > one where the problem was a broken ground wire.
> > > > - I have checked various wiring from the Fuel injection Control unit
> > > > and from the Ignition Control Unit.
> > > > - I have removed the ICV and made sure it is not stuck
> > > > - I have looked extensively for vacuum leaks.
> > > >
> > > > The problem has never budged. The problem happened from one second to
> > > > the next and subsequently never subsided regardless of which cables I
> > > > touched while the engine was running.
> > > >
> > > > I hope that someone has seen such problem before and had more luck than
> > > > me dealing with the problem.
> > > >
> > > > Thank you for any hints or advice,
> > > >
> > > > Andre
> > > >
area of ignition with the ignition coil topping the list.
e-mail#6 reinforces my theory. My brother has at some point tried to
investigate the cylinders that are misfiring. It was not clear that
these were always the same cylinders. We replaced a spark plug in
cylinder #1 which seemed to make no contribution to running the engine
(pulling cable #1 didn't make a difference). Replacing the spark
plug seemed to help but not for long. In any case I do remember that
the spark plug was wet rather than covered with cids.
I have also tried to read the codes using an LED jig that I made. The
readings were not consistent. At one point a bunch of codes were
reported but none led me anywhere. One of them was a "full throttle
switch failure". I checked the switch and the wiring and couldn't
detect any failure.
Unfortunately this weekend doesn't look too good for me in terms of
having time "for my Audi 100". I will keep you posted of any
progress I will be able to make with this car.
The car is in good condition (apart from the problem of course) and it
is a niec editions of that model, leather seats and all... I am rather
determined to put this car back on the road.
Many Thanks,
Andre
upallnight-two wrote:
> Since the engine appears to be missing on 1 or 2 cylinders, the first
> order of business is to determine which cylinders are missing. Using
> an insulated spark plug wire puller and with the engine running remove
> one wire at a time to determine which cylinder(s) are dead. Once you
> have determine which cylinder(s) are dead remove the spark plug and
> inspect them. If the are really black with soot then you have a fuel
> problem (way too much fuel), but if they clean and wet with gas then
> you have an ignition problem.
>
>
> Andre wrote:
> > Thank you all for your responses. It is my first time asking for help
> > through an internet group and I truly appreciate the quick response.
> > Some of the ideas I have already tried or considered but some of the
> > suggestions I haven't tried yet and the information is very useful to
> > me. I will not be able to work on the car in the next couple of days
> > but when I do, I will let you know what I have accomplished.
> >
> > Thank you again,
> >
> > Andre
> >
> >
> > Steve Sears wrote:
> > > Andre,
> > > Please say that you have pulled the diagnostic codes from the engine control
> > > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > > buy/replace parts without using the onboard diagnostic first.
> > > Failing that, could you have an obstruction in the exhaust system, like a
> > > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > > and seeing if the power returns - the car will be super loud, which,
> > > apparently, is cool these days
> > > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > > is www.audifans.com and the newsgroups at www.audiworld.com
> > > Cheers!
> > > Steve Sears
> > > 1987 Audi 5kTQ
> > > 1980 Audi 5k
> > > 1962 and '64 Auto Union DKW Junior deLuxes
> > > (SPAM Blocker NOTE: Remove SHOES to reply)
> > >
> > >
> > >
> > > "Andre" <andrez83@hotmail.com> wrote in message
> > > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > > Hi,
> > > >
> > > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > > while my wife was driving uphill and was changing to a lower gear.
> > > > This happened about 3 years ago.
> > > >
> > > > Description of problem:
> > > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > > firing during idle and attempted ride on the road.
> > > > - It always starts OK even after not being started for months.
> > > > - When I try to rev up the engine the car struggles to increase the
> > > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > > high, as high as I want to.
> > > > - I sometimes attempt to drive the car but it has consistently very
> > > > low power!!!
> > > >
> > > > I have been trying to get to the bottom of the problem with no luck
> > > > trying various things over the last three years.
> > > > I have done the following (don't remember all the things I've done):
> > > > - replaced fuel filter,
> > > > - cleaned air filter,
> > > > - tried different spark plugs, cables, distributor cap
> > > > - I have looked extensively for a bad ground connection. I have
> > > > actually had a problem with my 85Audi5000 which closely resembled this
> > > > one where the problem was a broken ground wire.
> > > > - I have checked various wiring from the Fuel injection Control unit
> > > > and from the Ignition Control Unit.
> > > > - I have removed the ICV and made sure it is not stuck
> > > > - I have looked extensively for vacuum leaks.
> > > >
> > > > The problem has never budged. The problem happened from one second to
> > > > the next and subsequently never subsided regardless of which cables I
> > > > touched while the engine was running.
> > > >
> > > > I hope that someone has seen such problem before and had more luck than
> > > > me dealing with the problem.
> > > >
> > > > Thank you for any hints or advice,
> > > >
> > > > Andre
> > > >
#18
Guest
Posts: n/a
Re: Audi 100 '89 No Power.
After reading all the responses my primary suspect right now is in the
area of ignition with the ignition coil topping the list.
e-mail#6 reinforces my theory. My brother has at some point tried to
investigate the cylinders that are misfiring. It was not clear that
these were always the same cylinders. We replaced a spark plug in
cylinder #1 which seemed to make no contribution to running the engine
(pulling cable #1 didn't make a difference). Replacing the spark
plug seemed to help but not for long. In any case I do remember that
the spark plug was wet rather than covered with cids.
I have also tried to read the codes using an LED jig that I made. The
readings were not consistent. At one point a bunch of codes were
reported but none led me anywhere. One of them was a "full throttle
switch failure". I checked the switch and the wiring and couldn't
detect any failure.
Unfortunately this weekend doesn't look too good for me in terms of
having time "for my Audi 100". I will keep you posted of any
progress I will be able to make with this car.
The car is in good condition (apart from the problem of course) and it
is a niec editions of that model, leather seats and all... I am rather
determined to put this car back on the road.
Many Thanks,
Andre
upallnight-two wrote:
> Since the engine appears to be missing on 1 or 2 cylinders, the first
> order of business is to determine which cylinders are missing. Using
> an insulated spark plug wire puller and with the engine running remove
> one wire at a time to determine which cylinder(s) are dead. Once you
> have determine which cylinder(s) are dead remove the spark plug and
> inspect them. If the are really black with soot then you have a fuel
> problem (way too much fuel), but if they clean and wet with gas then
> you have an ignition problem.
>
>
> Andre wrote:
> > Thank you all for your responses. It is my first time asking for help
> > through an internet group and I truly appreciate the quick response.
> > Some of the ideas I have already tried or considered but some of the
> > suggestions I haven't tried yet and the information is very useful to
> > me. I will not be able to work on the car in the next couple of days
> > but when I do, I will let you know what I have accomplished.
> >
> > Thank you again,
> >
> > Andre
> >
> >
> > Steve Sears wrote:
> > > Andre,
> > > Please say that you have pulled the diagnostic codes from the engine control
> > > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > > buy/replace parts without using the onboard diagnostic first.
> > > Failing that, could you have an obstruction in the exhaust system, like a
> > > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > > and seeing if the power returns - the car will be super loud, which,
> > > apparently, is cool these days
> > > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > > is www.audifans.com and the newsgroups at www.audiworld.com
> > > Cheers!
> > > Steve Sears
> > > 1987 Audi 5kTQ
> > > 1980 Audi 5k
> > > 1962 and '64 Auto Union DKW Junior deLuxes
> > > (SPAM Blocker NOTE: Remove SHOES to reply)
> > >
> > >
> > >
> > > "Andre" <andrez83@hotmail.com> wrote in message
> > > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > > Hi,
> > > >
> > > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > > while my wife was driving uphill and was changing to a lower gear.
> > > > This happened about 3 years ago.
> > > >
> > > > Description of problem:
> > > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > > firing during idle and attempted ride on the road.
> > > > - It always starts OK even after not being started for months.
> > > > - When I try to rev up the engine the car struggles to increase the
> > > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > > high, as high as I want to.
> > > > - I sometimes attempt to drive the car but it has consistently very
> > > > low power!!!
> > > >
> > > > I have been trying to get to the bottom of the problem with no luck
> > > > trying various things over the last three years.
> > > > I have done the following (don't remember all the things I've done):
> > > > - replaced fuel filter,
> > > > - cleaned air filter,
> > > > - tried different spark plugs, cables, distributor cap
> > > > - I have looked extensively for a bad ground connection. I have
> > > > actually had a problem with my 85Audi5000 which closely resembled this
> > > > one where the problem was a broken ground wire.
> > > > - I have checked various wiring from the Fuel injection Control unit
> > > > and from the Ignition Control Unit.
> > > > - I have removed the ICV and made sure it is not stuck
> > > > - I have looked extensively for vacuum leaks.
> > > >
> > > > The problem has never budged. The problem happened from one second to
> > > > the next and subsequently never subsided regardless of which cables I
> > > > touched while the engine was running.
> > > >
> > > > I hope that someone has seen such problem before and had more luck than
> > > > me dealing with the problem.
> > > >
> > > > Thank you for any hints or advice,
> > > >
> > > > Andre
> > > >
area of ignition with the ignition coil topping the list.
e-mail#6 reinforces my theory. My brother has at some point tried to
investigate the cylinders that are misfiring. It was not clear that
these were always the same cylinders. We replaced a spark plug in
cylinder #1 which seemed to make no contribution to running the engine
(pulling cable #1 didn't make a difference). Replacing the spark
plug seemed to help but not for long. In any case I do remember that
the spark plug was wet rather than covered with cids.
I have also tried to read the codes using an LED jig that I made. The
readings were not consistent. At one point a bunch of codes were
reported but none led me anywhere. One of them was a "full throttle
switch failure". I checked the switch and the wiring and couldn't
detect any failure.
Unfortunately this weekend doesn't look too good for me in terms of
having time "for my Audi 100". I will keep you posted of any
progress I will be able to make with this car.
The car is in good condition (apart from the problem of course) and it
is a niec editions of that model, leather seats and all... I am rather
determined to put this car back on the road.
Many Thanks,
Andre
upallnight-two wrote:
> Since the engine appears to be missing on 1 or 2 cylinders, the first
> order of business is to determine which cylinders are missing. Using
> an insulated spark plug wire puller and with the engine running remove
> one wire at a time to determine which cylinder(s) are dead. Once you
> have determine which cylinder(s) are dead remove the spark plug and
> inspect them. If the are really black with soot then you have a fuel
> problem (way too much fuel), but if they clean and wet with gas then
> you have an ignition problem.
>
>
> Andre wrote:
> > Thank you all for your responses. It is my first time asking for help
> > through an internet group and I truly appreciate the quick response.
> > Some of the ideas I have already tried or considered but some of the
> > suggestions I haven't tried yet and the information is very useful to
> > me. I will not be able to work on the car in the next couple of days
> > but when I do, I will let you know what I have accomplished.
> >
> > Thank you again,
> >
> > Andre
> >
> >
> > Steve Sears wrote:
> > > Andre,
> > > Please say that you have pulled the diagnostic codes from the engine control
> > > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > > buy/replace parts without using the onboard diagnostic first.
> > > Failing that, could you have an obstruction in the exhaust system, like a
> > > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > > and seeing if the power returns - the car will be super loud, which,
> > > apparently, is cool these days
> > > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > > is www.audifans.com and the newsgroups at www.audiworld.com
> > > Cheers!
> > > Steve Sears
> > > 1987 Audi 5kTQ
> > > 1980 Audi 5k
> > > 1962 and '64 Auto Union DKW Junior deLuxes
> > > (SPAM Blocker NOTE: Remove SHOES to reply)
> > >
> > >
> > >
> > > "Andre" <andrez83@hotmail.com> wrote in message
> > > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > > Hi,
> > > >
> > > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > > while my wife was driving uphill and was changing to a lower gear.
> > > > This happened about 3 years ago.
> > > >
> > > > Description of problem:
> > > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > > firing during idle and attempted ride on the road.
> > > > - It always starts OK even after not being started for months.
> > > > - When I try to rev up the engine the car struggles to increase the
> > > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > > high, as high as I want to.
> > > > - I sometimes attempt to drive the car but it has consistently very
> > > > low power!!!
> > > >
> > > > I have been trying to get to the bottom of the problem with no luck
> > > > trying various things over the last three years.
> > > > I have done the following (don't remember all the things I've done):
> > > > - replaced fuel filter,
> > > > - cleaned air filter,
> > > > - tried different spark plugs, cables, distributor cap
> > > > - I have looked extensively for a bad ground connection. I have
> > > > actually had a problem with my 85Audi5000 which closely resembled this
> > > > one where the problem was a broken ground wire.
> > > > - I have checked various wiring from the Fuel injection Control unit
> > > > and from the Ignition Control Unit.
> > > > - I have removed the ICV and made sure it is not stuck
> > > > - I have looked extensively for vacuum leaks.
> > > >
> > > > The problem has never budged. The problem happened from one second to
> > > > the next and subsequently never subsided regardless of which cables I
> > > > touched while the engine was running.
> > > >
> > > > I hope that someone has seen such problem before and had more luck than
> > > > me dealing with the problem.
> > > >
> > > > Thank you for any hints or advice,
> > > >
> > > > Andre
> > > >
#19
Guest
Posts: n/a
Re: Audi 100 '89 No Power.
After reading all the responses my primary suspect right now is in the
area of ignition with the ignition coil topping the list.
e-mail#6 reinforces my theory. My brother has at some point tried to
investigate the cylinders that are misfiring. It was not clear that
these were always the same cylinders. We replaced a spark plug in
cylinder #1 which seemed to make no contribution to running the engine
(pulling cable #1 didn't make a difference). Replacing the spark
plug seemed to help but not for long. In any case I do remember that
the spark plug was wet rather than covered with cids.
I have also tried to read the codes using an LED jig that I made. The
readings were not consistent. At one point a bunch of codes were
reported but none led me anywhere. One of them was a "full throttle
switch failure". I checked the switch and the wiring and couldn't
detect any failure.
Unfortunately this weekend doesn't look too good for me in terms of
having time "for my Audi 100". I will keep you posted of any
progress I will be able to make with this car.
The car is in good condition (apart from the problem of course) and it
is a niec editions of that model, leather seats and all... I am rather
determined to put this car back on the road.
Many Thanks,
Andre
upallnight-two wrote:
> Since the engine appears to be missing on 1 or 2 cylinders, the first
> order of business is to determine which cylinders are missing. Using
> an insulated spark plug wire puller and with the engine running remove
> one wire at a time to determine which cylinder(s) are dead. Once you
> have determine which cylinder(s) are dead remove the spark plug and
> inspect them. If the are really black with soot then you have a fuel
> problem (way too much fuel), but if they clean and wet with gas then
> you have an ignition problem.
>
>
> Andre wrote:
> > Thank you all for your responses. It is my first time asking for help
> > through an internet group and I truly appreciate the quick response.
> > Some of the ideas I have already tried or considered but some of the
> > suggestions I haven't tried yet and the information is very useful to
> > me. I will not be able to work on the car in the next couple of days
> > but when I do, I will let you know what I have accomplished.
> >
> > Thank you again,
> >
> > Andre
> >
> >
> > Steve Sears wrote:
> > > Andre,
> > > Please say that you have pulled the diagnostic codes from the engine control
> > > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > > buy/replace parts without using the onboard diagnostic first.
> > > Failing that, could you have an obstruction in the exhaust system, like a
> > > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > > and seeing if the power returns - the car will be super loud, which,
> > > apparently, is cool these days
> > > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > > is www.audifans.com and the newsgroups at www.audiworld.com
> > > Cheers!
> > > Steve Sears
> > > 1987 Audi 5kTQ
> > > 1980 Audi 5k
> > > 1962 and '64 Auto Union DKW Junior deLuxes
> > > (SPAM Blocker NOTE: Remove SHOES to reply)
> > >
> > >
> > >
> > > "Andre" <andrez83@hotmail.com> wrote in message
> > > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > > Hi,
> > > >
> > > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > > while my wife was driving uphill and was changing to a lower gear.
> > > > This happened about 3 years ago.
> > > >
> > > > Description of problem:
> > > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > > firing during idle and attempted ride on the road.
> > > > - It always starts OK even after not being started for months.
> > > > - When I try to rev up the engine the car struggles to increase the
> > > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > > high, as high as I want to.
> > > > - I sometimes attempt to drive the car but it has consistently very
> > > > low power!!!
> > > >
> > > > I have been trying to get to the bottom of the problem with no luck
> > > > trying various things over the last three years.
> > > > I have done the following (don't remember all the things I've done):
> > > > - replaced fuel filter,
> > > > - cleaned air filter,
> > > > - tried different spark plugs, cables, distributor cap
> > > > - I have looked extensively for a bad ground connection. I have
> > > > actually had a problem with my 85Audi5000 which closely resembled this
> > > > one where the problem was a broken ground wire.
> > > > - I have checked various wiring from the Fuel injection Control unit
> > > > and from the Ignition Control Unit.
> > > > - I have removed the ICV and made sure it is not stuck
> > > > - I have looked extensively for vacuum leaks.
> > > >
> > > > The problem has never budged. The problem happened from one second to
> > > > the next and subsequently never subsided regardless of which cables I
> > > > touched while the engine was running.
> > > >
> > > > I hope that someone has seen such problem before and had more luck than
> > > > me dealing with the problem.
> > > >
> > > > Thank you for any hints or advice,
> > > >
> > > > Andre
> > > >
area of ignition with the ignition coil topping the list.
e-mail#6 reinforces my theory. My brother has at some point tried to
investigate the cylinders that are misfiring. It was not clear that
these were always the same cylinders. We replaced a spark plug in
cylinder #1 which seemed to make no contribution to running the engine
(pulling cable #1 didn't make a difference). Replacing the spark
plug seemed to help but not for long. In any case I do remember that
the spark plug was wet rather than covered with cids.
I have also tried to read the codes using an LED jig that I made. The
readings were not consistent. At one point a bunch of codes were
reported but none led me anywhere. One of them was a "full throttle
switch failure". I checked the switch and the wiring and couldn't
detect any failure.
Unfortunately this weekend doesn't look too good for me in terms of
having time "for my Audi 100". I will keep you posted of any
progress I will be able to make with this car.
The car is in good condition (apart from the problem of course) and it
is a niec editions of that model, leather seats and all... I am rather
determined to put this car back on the road.
Many Thanks,
Andre
upallnight-two wrote:
> Since the engine appears to be missing on 1 or 2 cylinders, the first
> order of business is to determine which cylinders are missing. Using
> an insulated spark plug wire puller and with the engine running remove
> one wire at a time to determine which cylinder(s) are dead. Once you
> have determine which cylinder(s) are dead remove the spark plug and
> inspect them. If the are really black with soot then you have a fuel
> problem (way too much fuel), but if they clean and wet with gas then
> you have an ignition problem.
>
>
> Andre wrote:
> > Thank you all for your responses. It is my first time asking for help
> > through an internet group and I truly appreciate the quick response.
> > Some of the ideas I have already tried or considered but some of the
> > suggestions I haven't tried yet and the information is very useful to
> > me. I will not be able to work on the car in the next couple of days
> > but when I do, I will let you know what I have accomplished.
> >
> > Thank you again,
> >
> > Andre
> >
> >
> > Steve Sears wrote:
> > > Andre,
> > > Please say that you have pulled the diagnostic codes from the engine control
> > > unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
> > > buy/replace parts without using the onboard diagnostic first.
> > > Failing that, could you have an obstruction in the exhaust system, like a
> > > plugged catylitic converter? - try disconnecting the exhaust before the cat
> > > and seeing if the power returns - the car will be super loud, which,
> > > apparently, is cool these days
> > > Scott Mockry's site is an excellent one to review for trouble shooting - so
> > > is www.audifans.com and the newsgroups at www.audiworld.com
> > > Cheers!
> > > Steve Sears
> > > 1987 Audi 5kTQ
> > > 1980 Audi 5k
> > > 1962 and '64 Auto Union DKW Junior deLuxes
> > > (SPAM Blocker NOTE: Remove SHOES to reply)
> > >
> > >
> > >
> > > "Andre" <andrez83@hotmail.com> wrote in message
> > > news:1147278384.494396.321750@y43g2000cwc.googlegr oups.com...
> > > > Hi,
> > > >
> > > > My Audi 100 '89 (manual transmission) has Abruptly developed a problem
> > > > while my wife was driving uphill and was changing to a lower gear.
> > > > This happened about 3 years ago.
> > > >
> > > > Description of problem:
> > > > - The car runs very rough as if only 3 or 4 of the 5 cylinders were
> > > > firing during idle and attempted ride on the road.
> > > > - It always starts OK even after not being started for months.
> > > > - When I try to rev up the engine the car struggles to increase the
> > > > RPM, however when I release my foot from the gas pedal the RPM seems to
> > > > pick up. I can then sort of pump the gas pedal and get the RPM quite
> > > > high, as high as I want to.
> > > > - I sometimes attempt to drive the car but it has consistently very
> > > > low power!!!
> > > >
> > > > I have been trying to get to the bottom of the problem with no luck
> > > > trying various things over the last three years.
> > > > I have done the following (don't remember all the things I've done):
> > > > - replaced fuel filter,
> > > > - cleaned air filter,
> > > > - tried different spark plugs, cables, distributor cap
> > > > - I have looked extensively for a bad ground connection. I have
> > > > actually had a problem with my 85Audi5000 which closely resembled this
> > > > one where the problem was a broken ground wire.
> > > > - I have checked various wiring from the Fuel injection Control unit
> > > > and from the Ignition Control Unit.
> > > > - I have removed the ICV and made sure it is not stuck
> > > > - I have looked extensively for vacuum leaks.
> > > >
> > > > The problem has never budged. The problem happened from one second to
> > > > the next and subsequently never subsided regardless of which cables I
> > > > touched while the engine was running.
> > > >
> > > > I hope that someone has seen such problem before and had more luck than
> > > > me dealing with the problem.
> > > >
> > > > Thank you for any hints or advice,
> > > >
> > > > Andre
> > > >
#20
Guest
Posts: n/a
Re: Audi 100 '89 No Power.
Good work on pulling the codes.
The 'full throttle switch failure' that you were checking is a common problem
with the I5 engines. As you know the switch is in the throttle body and includes
two switches: WOT - wide open throttle and another switch for closed throttle.
The wires from the switches go to a three conductor plug at the back of the TB.
Ohm out these wires while operating the linkage should show changes from open to
closed circuit at each extreme.
Even if this ohms out OK there could still be an intermittent failure due to
cracked solder contacts on the switches. Removal and re-soldering will correct
this in most cases.
Andre wrote:
> After reading all the responses my primary suspect right now is in the
> area of ignition with the ignition coil topping the list.
> e-mail#6 reinforces my theory. My brother has at some point tried to
> investigate the cylinders that are misfiring. It was not clear that
> these were always the same cylinders. We replaced a spark plug in
> cylinder #1 which seemed to make no contribution to running the engine
> (pulling cable #1 didn't make a difference). Replacing the spark
> plug seemed to help but not for long. In any case I do remember that
> the spark plug was wet rather than covered with cids.
>
> I have also tried to read the codes using an LED jig that I made. The
> readings were not consistent. At one point a bunch of codes were
> reported but none led me anywhere. One of them was a "full throttle
> switch failure". I checked the switch and the wiring and couldn't
> detect any failure.
>
> Unfortunately this weekend doesn't look too good for me in terms of
> having time "for my Audi 100". I will keep you posted of any
> progress I will be able to make with this car.
> The car is in good condition (apart from the problem of course) and it
> is a niec editions of that model, leather seats and all... I am rather
> determined to put this car back on the road.
>
> Many Thanks,
>
> Andre
>
> upallnight-two wrote:
>
>>Since the engine appears to be missing on 1 or 2 cylinders, the first
>>order of business is to determine which cylinders are missing. Using
>>an insulated spark plug wire puller and with the engine running remove
>>one wire at a time to determine which cylinder(s) are dead. Once you
>>have determine which cylinder(s) are dead remove the spark plug and
>>inspect them. If the are really black with soot then you have a fuel
>>problem (way too much fuel), but if they clean and wet with gas then
>>you have an ignition problem.
>>
>>
>>Andre wrote:
>>
>>>Thank you all for your responses. It is my first time asking for help
>>>through an internet group and I truly appreciate the quick response.
>>>Some of the ideas I have already tried or considered but some of the
>>>suggestions I haven't tried yet and the information is very useful to
>>>me. I will not be able to work on the car in the next couple of days
>>>but when I do, I will let you know what I have accomplished.
>>>
>>>Thank you again,
>>>
>>>Andre
>>>
>>>
>>>Steve Sears wrote:
>>>
>>>>Andre,
>>>>Please say that you have pulled the diagnostic codes from the engine control
>>>>unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
>>>>buy/replace parts without using the onboard diagnostic first.
>>>>Failing that, could you have an obstruction in the exhaust system, like a
>>>>plugged catylitic converter? - try disconnecting the exhaust before the cat
>>>>and seeing if the power returns - the car will be super loud, which,
>>>>apparently, is cool these days
>>>>Scott Mockry's site is an excellent one to review for trouble shooting - so
>>>>is www.audifans.com and the newsgroups at www.audiworld.com
>>>>Cheers!
>>>>Steve Sears
>>>>1987 Audi 5kTQ
>>>>1980 Audi 5k
>>>>1962 and '64 Auto Union DKW Junior deLuxes
>>>>(SPAM Blocker NOTE: Remove SHOES to reply)
>>>>
>>>>
>>>>
>>>>"Andre" <andrez83@hotmail.com> wrote in message
>>>>news:1147278384.494396.321750@y43g2000cwc.goog legroups.com...
>>>>
>>>>>Hi,
>>>>>
>>>>>My Audi 100 '89 (manual transmission) has Abruptly developed a problem
>>>>>while my wife was driving uphill and was changing to a lower gear.
>>>>>This happened about 3 years ago.
>>>>>
>>>>>Description of problem:
>>>>>- The car runs very rough as if only 3 or 4 of the 5 cylinders were
>>>>>firing during idle and attempted ride on the road.
>>>>>- It always starts OK even after not being started for months.
>>>>>- When I try to rev up the engine the car struggles to increase the
>>>>>RPM, however when I release my foot from the gas pedal the RPM seems to
>>>>>pick up. I can then sort of pump the gas pedal and get the RPM quite
>>>>>high, as high as I want to.
>>>>>- I sometimes attempt to drive the car but it has consistently very
>>>>>low power!!!
>>>>>
>>>>>I have been trying to get to the bottom of the problem with no luck
>>>>>trying various things over the last three years.
>>>>>I have done the following (don't remember all the things I've done):
>>>>>- replaced fuel filter,
>>>>>- cleaned air filter,
>>>>>- tried different spark plugs, cables, distributor cap
>>>>>- I have looked extensively for a bad ground connection. I have
>>>>>actually had a problem with my 85Audi5000 which closely resembled this
>>>>>one where the problem was a broken ground wire.
>>>>>- I have checked various wiring from the Fuel injection Control unit
>>>>>and from the Ignition Control Unit.
>>>>>- I have removed the ICV and made sure it is not stuck
>>>>>- I have looked extensively for vacuum leaks.
>>>>>
>>>>>The problem has never budged. The problem happened from one second to
>>>>>the next and subsequently never subsided regardless of which cables I
>>>>>touched while the engine was running.
>>>>>
>>>>>I hope that someone has seen such problem before and had more luck than
>>>>>me dealing with the problem.
>>>>>
>>>>>Thank you for any hints or advice,
>>>>>
>>>>>Andre
>>>>>
>
>
The 'full throttle switch failure' that you were checking is a common problem
with the I5 engines. As you know the switch is in the throttle body and includes
two switches: WOT - wide open throttle and another switch for closed throttle.
The wires from the switches go to a three conductor plug at the back of the TB.
Ohm out these wires while operating the linkage should show changes from open to
closed circuit at each extreme.
Even if this ohms out OK there could still be an intermittent failure due to
cracked solder contacts on the switches. Removal and re-soldering will correct
this in most cases.
Andre wrote:
> After reading all the responses my primary suspect right now is in the
> area of ignition with the ignition coil topping the list.
> e-mail#6 reinforces my theory. My brother has at some point tried to
> investigate the cylinders that are misfiring. It was not clear that
> these were always the same cylinders. We replaced a spark plug in
> cylinder #1 which seemed to make no contribution to running the engine
> (pulling cable #1 didn't make a difference). Replacing the spark
> plug seemed to help but not for long. In any case I do remember that
> the spark plug was wet rather than covered with cids.
>
> I have also tried to read the codes using an LED jig that I made. The
> readings were not consistent. At one point a bunch of codes were
> reported but none led me anywhere. One of them was a "full throttle
> switch failure". I checked the switch and the wiring and couldn't
> detect any failure.
>
> Unfortunately this weekend doesn't look too good for me in terms of
> having time "for my Audi 100". I will keep you posted of any
> progress I will be able to make with this car.
> The car is in good condition (apart from the problem of course) and it
> is a niec editions of that model, leather seats and all... I am rather
> determined to put this car back on the road.
>
> Many Thanks,
>
> Andre
>
> upallnight-two wrote:
>
>>Since the engine appears to be missing on 1 or 2 cylinders, the first
>>order of business is to determine which cylinders are missing. Using
>>an insulated spark plug wire puller and with the engine running remove
>>one wire at a time to determine which cylinder(s) are dead. Once you
>>have determine which cylinder(s) are dead remove the spark plug and
>>inspect them. If the are really black with soot then you have a fuel
>>problem (way too much fuel), but if they clean and wet with gas then
>>you have an ignition problem.
>>
>>
>>Andre wrote:
>>
>>>Thank you all for your responses. It is my first time asking for help
>>>through an internet group and I truly appreciate the quick response.
>>>Some of the ideas I have already tried or considered but some of the
>>>suggestions I haven't tried yet and the information is very useful to
>>>me. I will not be able to work on the car in the next couple of days
>>>but when I do, I will let you know what I have accomplished.
>>>
>>>Thank you again,
>>>
>>>Andre
>>>
>>>
>>>Steve Sears wrote:
>>>
>>>>Andre,
>>>>Please say that you have pulled the diagnostic codes from the engine control
>>>>unit: http://www.sjmautotechnik.com/troubl...ng/10naecu.htm Don't just
>>>>buy/replace parts without using the onboard diagnostic first.
>>>>Failing that, could you have an obstruction in the exhaust system, like a
>>>>plugged catylitic converter? - try disconnecting the exhaust before the cat
>>>>and seeing if the power returns - the car will be super loud, which,
>>>>apparently, is cool these days
>>>>Scott Mockry's site is an excellent one to review for trouble shooting - so
>>>>is www.audifans.com and the newsgroups at www.audiworld.com
>>>>Cheers!
>>>>Steve Sears
>>>>1987 Audi 5kTQ
>>>>1980 Audi 5k
>>>>1962 and '64 Auto Union DKW Junior deLuxes
>>>>(SPAM Blocker NOTE: Remove SHOES to reply)
>>>>
>>>>
>>>>
>>>>"Andre" <andrez83@hotmail.com> wrote in message
>>>>news:1147278384.494396.321750@y43g2000cwc.goog legroups.com...
>>>>
>>>>>Hi,
>>>>>
>>>>>My Audi 100 '89 (manual transmission) has Abruptly developed a problem
>>>>>while my wife was driving uphill and was changing to a lower gear.
>>>>>This happened about 3 years ago.
>>>>>
>>>>>Description of problem:
>>>>>- The car runs very rough as if only 3 or 4 of the 5 cylinders were
>>>>>firing during idle and attempted ride on the road.
>>>>>- It always starts OK even after not being started for months.
>>>>>- When I try to rev up the engine the car struggles to increase the
>>>>>RPM, however when I release my foot from the gas pedal the RPM seems to
>>>>>pick up. I can then sort of pump the gas pedal and get the RPM quite
>>>>>high, as high as I want to.
>>>>>- I sometimes attempt to drive the car but it has consistently very
>>>>>low power!!!
>>>>>
>>>>>I have been trying to get to the bottom of the problem with no luck
>>>>>trying various things over the last three years.
>>>>>I have done the following (don't remember all the things I've done):
>>>>>- replaced fuel filter,
>>>>>- cleaned air filter,
>>>>>- tried different spark plugs, cables, distributor cap
>>>>>- I have looked extensively for a bad ground connection. I have
>>>>>actually had a problem with my 85Audi5000 which closely resembled this
>>>>>one where the problem was a broken ground wire.
>>>>>- I have checked various wiring from the Fuel injection Control unit
>>>>>and from the Ignition Control Unit.
>>>>>- I have removed the ICV and made sure it is not stuck
>>>>>- I have looked extensively for vacuum leaks.
>>>>>
>>>>>The problem has never budged. The problem happened from one second to
>>>>>the next and subsequently never subsided regardless of which cables I
>>>>>touched while the engine was running.
>>>>>
>>>>>I hope that someone has seen such problem before and had more luck than
>>>>>me dealing with the problem.
>>>>>
>>>>>Thank you for any hints or advice,
>>>>>
>>>>>Andre
>>>>>
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