"Matthew Maddock" <matthew.maddock@nospamplease.mmaddock.com> wrote in
message news:dc3lj0$pnb$1@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com...
>> not sure what an ecu check costs out there but it might be worth a check.
>> Here in the UK its £30 ($50) by a third party test house. Had my sons
>> checked recently because of poor running, the check showed up a problem
>> and the repair cost £120 which included the £30 so it was better than the
>> dealership who quoted me £200 for a new ecu.
>>
>> somehow I doubt yours has a problem, just from a battery change, it just
>> needs time to settle or even a nice long run out.
>>
>> dj
>
> I'm in the UK also.
>
> Going to take it into "All Audi" in Bristol (anyone had previous
> experience of them?) I'm not paying the £80+ per hour rate at
> the dealerships! Besides, in my experience, once a car is more
> than about 10 years old, the dealerships know less about them than
> the independents.
>
> I've used All Audi for parts a few years ago, and was very
> impressed, hopefully their service dept is as good.
>
> Regardless, I'll give it a good run out tomorrow and see if
> it settles.
>
> cheers,
>
> Matt.
>

Try this, start car, then turn off, then turn to possition 2 ( ignition on )
leave ignition on for 10 mins without starting car, sit in it of course
incase someone jumps in & steals car, I think the ecu will go through a
throttle body reset after a few miniutes if the engine is not started,
pitty audi did not warn owners of the pitfall of changing a batery in the
hand book,

Steve.

 

"Matthew Maddock" <matthew.maddock@nospamplease.mmaddock.com> wrote in
message news:dc3lj0$pnb$1@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com...
>> not sure what an ecu check costs out there but it might be worth a check.
>> Here in the UK its £30 ($50) by a third party test house. Had my sons
>> checked recently because of poor running, the check showed up a problem
>> and the repair cost £120 which included the £30 so it was better than the
>> dealership who quoted me £200 for a new ecu.
>>
>> somehow I doubt yours has a problem, just from a battery change, it just
>> needs time to settle or even a nice long run out.
>>
>> dj
>
> I'm in the UK also.
>
> Going to take it into "All Audi" in Bristol (anyone had previous
> experience of them?) I'm not paying the £80+ per hour rate at
> the dealerships! Besides, in my experience, once a car is more
> than about 10 years old, the dealerships know less about them than
> the independents.
>
> I've used All Audi for parts a few years ago, and was very
> impressed, hopefully their service dept is as good.
>
> Regardless, I'll give it a good run out tomorrow and see if
> it settles.
>
> cheers,
>
> Matt.
>

Try this, start car, then turn off, then turn to possition 2 ( ignition on )
leave ignition on for 10 mins without starting car, sit in it of course
incase someone jumps in & steals car, I think the ecu will go through a
throttle body reset after a few miniutes if the engine is not started,
pitty audi did not warn owners of the pitfall of changing a batery in the
hand book,

Steve.

 

"Matthew Maddock" <matthew.maddock@nospamplease.mmaddock.com> wrote in
message news:dc3lj0$pnb$1@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com...
>> not sure what an ecu check costs out there but it might be worth a check.
>> Here in the UK its £30 ($50) by a third party test house. Had my sons
>> checked recently because of poor running, the check showed up a problem
>> and the repair cost £120 which included the £30 so it was better than the
>> dealership who quoted me £200 for a new ecu.
>>
>> somehow I doubt yours has a problem, just from a battery change, it just
>> needs time to settle or even a nice long run out.
>>
>> dj
>
> I'm in the UK also.
>
> Going to take it into "All Audi" in Bristol (anyone had previous
> experience of them?) I'm not paying the £80+ per hour rate at
> the dealerships! Besides, in my experience, once a car is more
> than about 10 years old, the dealerships know less about them than
> the independents.
>
> I've used All Audi for parts a few years ago, and was very
> impressed, hopefully their service dept is as good.
>
> Regardless, I'll give it a good run out tomorrow and see if
> it settles.
>
> cheers,
>
> Matt.
>

Try this, start car, then turn off, then turn to possition 2 ( ignition on )
leave ignition on for 10 mins without starting car, sit in it of course
incase someone jumps in & steals car, I think the ecu will go through a
throttle body reset after a few miniutes if the engine is not started,
pitty audi did not warn owners of the pitfall of changing a batery in the
hand book,

Steve.

 

daytripper wrote:
> On Mon, 25 Jul 2005 21:29:04 +0000 (UTC), Matthew Maddock
> <matthew.maddock@nospamplease.mmaddock.com> wrote:
>
>
>>>not sure what an ecu check costs out there but it might be worth a check.
>>>Here in the UK its £30 ($50) by a third party test house. Had my sons
>>>checked recently because of poor running, the check showed up a problem and
>>>the repair cost £120 which included the £30 so it was better than the
>>>dealership who quoted me £200 for a new ecu.
>>>
>>>somehow I doubt yours has a problem, just from a battery change, it just
>>>needs time to settle or even a nice long run out.
>>>
>>>dj
>>>
>>
>>I'm in the UK also.
>>
>>Going to take it into "All Audi" in Bristol (anyone had previous
>>experience of them?) I'm not paying the £80+ per hour rate at
>>the dealerships! Besides, in my experience, once a car is more
>>than about 10 years old, the dealerships know less about them than
>>the independents.
>>
>>I've used All Audi for parts a few years ago, and was very
>>impressed, hopefully their service dept is as good.
>>
>>Regardless, I'll give it a good run out tomorrow and see if
>>it settles.
>>
>>cheers,
>>
>>Matt.
>
>
> I might have missed it, but did you say the Engine Check light (aka MIL) is
> lit?
>
> There's all kinds of folklore and outright voodoo about how to clear a MIL
> indicator after a battery or ECU replacement, but normally, a 15 to 20 minute
> driving loop including highway speeds, city speeds, full stops, idling time,
> and one full engine run-stop-run cycle, will clear the MIL functions.
>
> What may have happened is some part (eg: the MAF) is so far out of adaptation
> range that the ECU cannot clear all of the bits to get the MIL to turn off.
> There's a certain amount of variation that the adaptation process will allow,
> and any part that's aged outside that range will fault the system until
> replaced. You can step on the ECU and the MIL bits all you want with a
> VAG-COM, for instance, but within a couple of days for sure that MIL will come
> right back on.
>
> On the up side, this is covered so thoroughly in the diagnostic bits that it
> should be trivial for an Audi main line shop to diagnosis and fix, promptly...
>
> /daytripper
> '00 s4 6spd, a Bentley CD, and a trusty VAG-COM

There is no warning light or otherwise.

I haven't really been out for a good run since, just pottered around
town. I'll give it a good blast down some country roads tomorrow and
hopefully get it cleared. If not, I'll get the garage to take a look.

cheers for the advice.

Matt

 

daytripper wrote:
> On Mon, 25 Jul 2005 21:29:04 +0000 (UTC), Matthew Maddock
> <matthew.maddock@nospamplease.mmaddock.com> wrote:
>
>
>>>not sure what an ecu check costs out there but it might be worth a check.
>>>Here in the UK its £30 ($50) by a third party test house. Had my sons
>>>checked recently because of poor running, the check showed up a problem and
>>>the repair cost £120 which included the £30 so it was better than the
>>>dealership who quoted me £200 for a new ecu.
>>>
>>>somehow I doubt yours has a problem, just from a battery change, it just
>>>needs time to settle or even a nice long run out.
>>>
>>>dj
>>>
>>
>>I'm in the UK also.
>>
>>Going to take it into "All Audi" in Bristol (anyone had previous
>>experience of them?) I'm not paying the £80+ per hour rate at
>>the dealerships! Besides, in my experience, once a car is more
>>than about 10 years old, the dealerships know less about them than
>>the independents.
>>
>>I've used All Audi for parts a few years ago, and was very
>>impressed, hopefully their service dept is as good.
>>
>>Regardless, I'll give it a good run out tomorrow and see if
>>it settles.
>>
>>cheers,
>>
>>Matt.
>
>
> I might have missed it, but did you say the Engine Check light (aka MIL) is
> lit?
>
> There's all kinds of folklore and outright voodoo about how to clear a MIL
> indicator after a battery or ECU replacement, but normally, a 15 to 20 minute
> driving loop including highway speeds, city speeds, full stops, idling time,
> and one full engine run-stop-run cycle, will clear the MIL functions.
>
> What may have happened is some part (eg: the MAF) is so far out of adaptation
> range that the ECU cannot clear all of the bits to get the MIL to turn off.
> There's a certain amount of variation that the adaptation process will allow,
> and any part that's aged outside that range will fault the system until
> replaced. You can step on the ECU and the MIL bits all you want with a
> VAG-COM, for instance, but within a couple of days for sure that MIL will come
> right back on.
>
> On the up side, this is covered so thoroughly in the diagnostic bits that it
> should be trivial for an Audi main line shop to diagnosis and fix, promptly...
>
> /daytripper
> '00 s4 6spd, a Bentley CD, and a trusty VAG-COM

There is no warning light or otherwise.

I haven't really been out for a good run since, just pottered around
town. I'll give it a good blast down some country roads tomorrow and
hopefully get it cleared. If not, I'll get the garage to take a look.

cheers for the advice.

Matt

 

daytripper wrote:
> On Mon, 25 Jul 2005 21:29:04 +0000 (UTC), Matthew Maddock
> <matthew.maddock@nospamplease.mmaddock.com> wrote:
>
>
>>>not sure what an ecu check costs out there but it might be worth a check.
>>>Here in the UK its £30 ($50) by a third party test house. Had my sons
>>>checked recently because of poor running, the check showed up a problem and
>>>the repair cost £120 which included the £30 so it was better than the
>>>dealership who quoted me £200 for a new ecu.
>>>
>>>somehow I doubt yours has a problem, just from a battery change, it just
>>>needs time to settle or even a nice long run out.
>>>
>>>dj
>>>
>>
>>I'm in the UK also.
>>
>>Going to take it into "All Audi" in Bristol (anyone had previous
>>experience of them?) I'm not paying the £80+ per hour rate at
>>the dealerships! Besides, in my experience, once a car is more
>>than about 10 years old, the dealerships know less about them than
>>the independents.
>>
>>I've used All Audi for parts a few years ago, and was very
>>impressed, hopefully their service dept is as good.
>>
>>Regardless, I'll give it a good run out tomorrow and see if
>>it settles.
>>
>>cheers,
>>
>>Matt.
>
>
> I might have missed it, but did you say the Engine Check light (aka MIL) is
> lit?
>
> There's all kinds of folklore and outright voodoo about how to clear a MIL
> indicator after a battery or ECU replacement, but normally, a 15 to 20 minute
> driving loop including highway speeds, city speeds, full stops, idling time,
> and one full engine run-stop-run cycle, will clear the MIL functions.
>
> What may have happened is some part (eg: the MAF) is so far out of adaptation
> range that the ECU cannot clear all of the bits to get the MIL to turn off.
> There's a certain amount of variation that the adaptation process will allow,
> and any part that's aged outside that range will fault the system until
> replaced. You can step on the ECU and the MIL bits all you want with a
> VAG-COM, for instance, but within a couple of days for sure that MIL will come
> right back on.
>
> On the up side, this is covered so thoroughly in the diagnostic bits that it
> should be trivial for an Audi main line shop to diagnosis and fix, promptly...
>
> /daytripper
> '00 s4 6spd, a Bentley CD, and a trusty VAG-COM

There is no warning light or otherwise.

I haven't really been out for a good run since, just pottered around
town. I'll give it a good blast down some country roads tomorrow and
hopefully get it cleared. If not, I'll get the garage to take a look.

cheers for the advice.

Matt

 

Matthew Maddock wrote:
> Just had to replace the battery on my '95 2.6 A6, the
> tick over was nice and steady before, but now it settles
> at 1500+ and seems to vary a bit - plus the engine seems
> a bit rough.
>
> Is it just one of those things that will re-program itself
> over the next few hundred miles, and then it'll be fine?
>
> cheers,
>
> Matt.

Sorted at bl**dy last!

It has reset itself twice in the past few days (after > 100 miles!)
but once I've driven off, it returned to the problem above.

Today it reset itself twice on startup, but did as above again, however
I was in traffic and messing about I switched the engine off and just
let her roll downhill until I needed to drive off, then started the
engine whilst rolling and it has been fine ever since! Not sure if
that is a complete coincidence or what, but seems to have done
the trick.

Now all I need to get sorted is the blowing exhaust - I'm praying
that is isn't the cats, but it sounds like it's coming for that
area

Matt.

 

Matthew Maddock wrote:
> Just had to replace the battery on my '95 2.6 A6, the
> tick over was nice and steady before, but now it settles
> at 1500+ and seems to vary a bit - plus the engine seems
> a bit rough.
>
> Is it just one of those things that will re-program itself
> over the next few hundred miles, and then it'll be fine?
>
> cheers,
>
> Matt.

Sorted at bl**dy last!

It has reset itself twice in the past few days (after > 100 miles!)
but once I've driven off, it returned to the problem above.

Today it reset itself twice on startup, but did as above again, however
I was in traffic and messing about I switched the engine off and just
let her roll downhill until I needed to drive off, then started the
engine whilst rolling and it has been fine ever since! Not sure if
that is a complete coincidence or what, but seems to have done
the trick.

Now all I need to get sorted is the blowing exhaust - I'm praying
that is isn't the cats, but it sounds like it's coming for that
area

Matt.

 

Matthew Maddock wrote:
> Just had to replace the battery on my '95 2.6 A6, the
> tick over was nice and steady before, but now it settles
> at 1500+ and seems to vary a bit - plus the engine seems
> a bit rough.
>
> Is it just one of those things that will re-program itself
> over the next few hundred miles, and then it'll be fine?
>
> cheers,
>
> Matt.

Sorted at bl**dy last!

It has reset itself twice in the past few days (after > 100 miles!)
but once I've driven off, it returned to the problem above.

Today it reset itself twice on startup, but did as above again, however
I was in traffic and messing about I switched the engine off and just
let her roll downhill until I needed to drive off, then started the
engine whilst rolling and it has been fine ever since! Not sure if
that is a complete coincidence or what, but seems to have done
the trick.

Now all I need to get sorted is the blowing exhaust - I'm praying
that is isn't the cats, but it sounds like it's coming for that
area

Matt.