A6 misfire
#31
Guest
Posts: n/a
Re: A6 misfire
"Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
> Jims Audi <14forest@earthlink.net> wrote:
>
>> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
>> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
>> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
>> still misfires. This is a very strange misfire. It misfires at idle,
>> off idle and under load but seems to go away at 2000 rpm with no load
>> and 2800 with load. This all started on the same day. Could it be fuel
>> injectors?
>
> Is the compression OK? There's a scary chance that the head gasket blew
> out between the two cylinders.
disconnect the battery and let the ecu set back to
default..............reconnect and run.
does it do it now.
#32
Guest
Posts: n/a
Re: A6 misfire
"Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
> Jims Audi <14forest@earthlink.net> wrote:
>
>> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
>> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
>> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
>> still misfires. This is a very strange misfire. It misfires at idle,
>> off idle and under load but seems to go away at 2000 rpm with no load
>> and 2800 with load. This all started on the same day. Could it be fuel
>> injectors?
>
> Is the compression OK? There's a scary chance that the head gasket blew
> out between the two cylinders.
disconnect the battery and let the ecu set back to
default..............reconnect and run.
does it do it now.
#33
Guest
Posts: n/a
Re: A6 misfire
"Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
> Jims Audi <14forest@earthlink.net> wrote:
>
>> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
>> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
>> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
>> still misfires. This is a very strange misfire. It misfires at idle,
>> off idle and under load but seems to go away at 2000 rpm with no load
>> and 2800 with load. This all started on the same day. Could it be fuel
>> injectors?
>
> Is the compression OK? There's a scary chance that the head gasket blew
> out between the two cylinders.
disconnect the battery and let the ecu set back to
default..............reconnect and run.
does it do it now.
#34
Guest
Posts: n/a
Re: A6 misfire
"Sue Ridge" <nospam@2daybtinternet.com> wrote in message
news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> "Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
> news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> > In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
> > Jims Audi <14forest@earthlink.net> wrote:
> >
> >> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
> >> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
> >> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
> >> still misfires. This is a very strange misfire. It misfires at idle,
> >> off idle and under load but seems to go away at 2000 rpm with no load
> >> and 2800 with load. This all started on the same day. Could it be fuel
> >> injectors?
> >
> > Is the compression OK? There's a scary chance that the head gasket blew
> > out between the two cylinders.
>
> disconnect the battery and let the ecu set back to
> default..............reconnect and run.
>
> does it do it now.
>
>
>
Disconecting the battery may cause the ECU to loose its memory on the
throttle body alignment settings, not a good idea unless you can re
calibrate it
Steve.
#35
Guest
Posts: n/a
Re: A6 misfire
"Sue Ridge" <nospam@2daybtinternet.com> wrote in message
news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> "Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
> news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> > In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
> > Jims Audi <14forest@earthlink.net> wrote:
> >
> >> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
> >> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
> >> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
> >> still misfires. This is a very strange misfire. It misfires at idle,
> >> off idle and under load but seems to go away at 2000 rpm with no load
> >> and 2800 with load. This all started on the same day. Could it be fuel
> >> injectors?
> >
> > Is the compression OK? There's a scary chance that the head gasket blew
> > out between the two cylinders.
>
> disconnect the battery and let the ecu set back to
> default..............reconnect and run.
>
> does it do it now.
>
>
>
Disconecting the battery may cause the ECU to loose its memory on the
throttle body alignment settings, not a good idea unless you can re
calibrate it
Steve.
#36
Guest
Posts: n/a
Re: A6 misfire
"Sue Ridge" <nospam@2daybtinternet.com> wrote in message
news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> "Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
> news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> > In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
> > Jims Audi <14forest@earthlink.net> wrote:
> >
> >> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
> >> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
> >> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
> >> still misfires. This is a very strange misfire. It misfires at idle,
> >> off idle and under load but seems to go away at 2000 rpm with no load
> >> and 2800 with load. This all started on the same day. Could it be fuel
> >> injectors?
> >
> > Is the compression OK? There's a scary chance that the head gasket blew
> > out between the two cylinders.
>
> disconnect the battery and let the ecu set back to
> default..............reconnect and run.
>
> does it do it now.
>
>
>
Disconecting the battery may cause the ECU to loose its memory on the
throttle body alignment settings, not a good idea unless you can re
calibrate it
Steve.
#37
Guest
Posts: n/a
Re: A6 misfire
"Sue Ridge" <nospam@2daybtinternet.com> wrote in message
news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> "Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
> news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> > In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
> > Jims Audi <14forest@earthlink.net> wrote:
> >
> >> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
> >> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
> >> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
> >> still misfires. This is a very strange misfire. It misfires at idle,
> >> off idle and under load but seems to go away at 2000 rpm with no load
> >> and 2800 with load. This all started on the same day. Could it be fuel
> >> injectors?
> >
> > Is the compression OK? There's a scary chance that the head gasket blew
> > out between the two cylinders.
>
> disconnect the battery and let the ecu set back to
> default..............reconnect and run.
>
> does it do it now.
>
>
>
Disconecting the battery may cause the ECU to loose its memory on the
throttle body alignment settings, not a good idea unless you can re
calibrate it
Steve.
#38
Guest
Posts: n/a
Re: A6 misfire
On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
<steve68s(remove)@btinternet.com> wrote:
>
>"Sue Ridge" <nospam@2daybtinternet.com> wrote in message
>news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> "Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
>> news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> > In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
>> > Jims Audi <14forest@earthlink.net> wrote:
>> >
>> >> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
>> >> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
>> >> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
>> >> still misfires. This is a very strange misfire. It misfires at idle,
>> >> off idle and under load but seems to go away at 2000 rpm with no load
>> >> and 2800 with load. This all started on the same day. Could it be fuel
>> >> injectors?
>> >
>> > Is the compression OK? There's a scary chance that the head gasket blew
>> > out between the two cylinders.
>>
>> disconnect the battery and let the ecu set back to
>> default..............reconnect and run.
>>
>> does it do it now.
>>
>>
>>
>
>Disconecting the battery may cause the ECU to loose its memory on the
>throttle body alignment settings, not a good idea unless you can re
>calibrate it
>
>Steve.
TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
position, wait three minutes. No biggie...
/daytripper
'00 s4 6spd
<steve68s(remove)@btinternet.com> wrote:
>
>"Sue Ridge" <nospam@2daybtinternet.com> wrote in message
>news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> "Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
>> news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> > In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
>> > Jims Audi <14forest@earthlink.net> wrote:
>> >
>> >> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
>> >> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
>> >> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
>> >> still misfires. This is a very strange misfire. It misfires at idle,
>> >> off idle and under load but seems to go away at 2000 rpm with no load
>> >> and 2800 with load. This all started on the same day. Could it be fuel
>> >> injectors?
>> >
>> > Is the compression OK? There's a scary chance that the head gasket blew
>> > out between the two cylinders.
>>
>> disconnect the battery and let the ecu set back to
>> default..............reconnect and run.
>>
>> does it do it now.
>>
>>
>>
>
>Disconecting the battery may cause the ECU to loose its memory on the
>throttle body alignment settings, not a good idea unless you can re
>calibrate it
>
>Steve.
TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
position, wait three minutes. No biggie...
/daytripper
'00 s4 6spd
#39
Guest
Posts: n/a
Re: A6 misfire
On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
<steve68s(remove)@btinternet.com> wrote:
>
>"Sue Ridge" <nospam@2daybtinternet.com> wrote in message
>news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> "Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
>> news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> > In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
>> > Jims Audi <14forest@earthlink.net> wrote:
>> >
>> >> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
>> >> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
>> >> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
>> >> still misfires. This is a very strange misfire. It misfires at idle,
>> >> off idle and under load but seems to go away at 2000 rpm with no load
>> >> and 2800 with load. This all started on the same day. Could it be fuel
>> >> injectors?
>> >
>> > Is the compression OK? There's a scary chance that the head gasket blew
>> > out between the two cylinders.
>>
>> disconnect the battery and let the ecu set back to
>> default..............reconnect and run.
>>
>> does it do it now.
>>
>>
>>
>
>Disconecting the battery may cause the ECU to loose its memory on the
>throttle body alignment settings, not a good idea unless you can re
>calibrate it
>
>Steve.
TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
position, wait three minutes. No biggie...
/daytripper
'00 s4 6spd
<steve68s(remove)@btinternet.com> wrote:
>
>"Sue Ridge" <nospam@2daybtinternet.com> wrote in message
>news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> "Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
>> news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> > In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
>> > Jims Audi <14forest@earthlink.net> wrote:
>> >
>> >> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
>> >> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
>> >> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
>> >> still misfires. This is a very strange misfire. It misfires at idle,
>> >> off idle and under load but seems to go away at 2000 rpm with no load
>> >> and 2800 with load. This all started on the same day. Could it be fuel
>> >> injectors?
>> >
>> > Is the compression OK? There's a scary chance that the head gasket blew
>> > out between the two cylinders.
>>
>> disconnect the battery and let the ecu set back to
>> default..............reconnect and run.
>>
>> does it do it now.
>>
>>
>>
>
>Disconecting the battery may cause the ECU to loose its memory on the
>throttle body alignment settings, not a good idea unless you can re
>calibrate it
>
>Steve.
TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
position, wait three minutes. No biggie...
/daytripper
'00 s4 6spd
#40
Guest
Posts: n/a
Re: A6 misfire
On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
<steve68s(remove)@btinternet.com> wrote:
>
>"Sue Ridge" <nospam@2daybtinternet.com> wrote in message
>news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> "Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
>> news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> > In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
>> > Jims Audi <14forest@earthlink.net> wrote:
>> >
>> >> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
>> >> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
>> >> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
>> >> still misfires. This is a very strange misfire. It misfires at idle,
>> >> off idle and under load but seems to go away at 2000 rpm with no load
>> >> and 2800 with load. This all started on the same day. Could it be fuel
>> >> injectors?
>> >
>> > Is the compression OK? There's a scary chance that the head gasket blew
>> > out between the two cylinders.
>>
>> disconnect the battery and let the ecu set back to
>> default..............reconnect and run.
>>
>> does it do it now.
>>
>>
>>
>
>Disconecting the battery may cause the ECU to loose its memory on the
>throttle body alignment settings, not a good idea unless you can re
>calibrate it
>
>Steve.
TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
position, wait three minutes. No biggie...
/daytripper
'00 s4 6spd
<steve68s(remove)@btinternet.com> wrote:
>
>"Sue Ridge" <nospam@2daybtinternet.com> wrote in message
>news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> "Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
>> news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> > In article <1189947424.221814.238220@k79g2000hse.googlegroups .com>,
>> > Jims Audi <14forest@earthlink.net> wrote:
>> >
>> >> I have a misfire on my Audi A6 2.7t Quattro. It started on Cyl #3 and
>> >> 4. I put in some fuel injector cleaner and replaced the plugs and Cyl
>> >> #3 misfire went away. I replaced the coils on Cyl #3 and #4 but it
>> >> still misfires. This is a very strange misfire. It misfires at idle,
>> >> off idle and under load but seems to go away at 2000 rpm with no load
>> >> and 2800 with load. This all started on the same day. Could it be fuel
>> >> injectors?
>> >
>> > Is the compression OK? There's a scary chance that the head gasket blew
>> > out between the two cylinders.
>>
>> disconnect the battery and let the ecu set back to
>> default..............reconnect and run.
>>
>> does it do it now.
>>
>>
>>
>
>Disconecting the battery may cause the ECU to loose its memory on the
>throttle body alignment settings, not a good idea unless you can re
>calibrate it
>
>Steve.
TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
position, wait three minutes. No biggie...
/daytripper
'00 s4 6spd