A6 misfire
#41
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
#42
Guest
Posts: n/a
Re: A6 misfire
On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>
>
>
>
>
> <steve68s(remove)@btinternet.com> wrote:
>
> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
> >> > Jims Audi <14for...@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- Hide quoted text -
>
> - Show quoted text -
More info:
I replaced the injector on cylinder #4. Bought a VAG reader at
virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
the codes ran the engine and reread them. I got P1458, P0030 and
P0304. Are you sre about the ECU? There is a test on the reader to
test the ECU. What about the radio code when I disconnect the battery?
> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>
>
>
>
>
> <steve68s(remove)@btinternet.com> wrote:
>
> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
> >> > Jims Audi <14for...@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- Hide quoted text -
>
> - Show quoted text -
More info:
I replaced the injector on cylinder #4. Bought a VAG reader at
virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
the codes ran the engine and reread them. I got P1458, P0030 and
P0304. Are you sre about the ECU? There is a test on the reader to
test the ECU. What about the radio code when I disconnect the battery?
#43
Guest
Posts: n/a
Re: A6 misfire
On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>
>
>
>
>
> <steve68s(remove)@btinternet.com> wrote:
>
> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
> >> > Jims Audi <14for...@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- Hide quoted text -
>
> - Show quoted text -
More info:
I replaced the injector on cylinder #4. Bought a VAG reader at
virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
the codes ran the engine and reread them. I got P1458, P0030 and
P0304. Are you sre about the ECU? There is a test on the reader to
test the ECU. What about the radio code when I disconnect the battery?
> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>
>
>
>
>
> <steve68s(remove)@btinternet.com> wrote:
>
> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
> >> > Jims Audi <14for...@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- Hide quoted text -
>
> - Show quoted text -
More info:
I replaced the injector on cylinder #4. Bought a VAG reader at
virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
the codes ran the engine and reread them. I got P1458, P0030 and
P0304. Are you sre about the ECU? There is a test on the reader to
test the ECU. What about the radio code when I disconnect the battery?
#44
Guest
Posts: n/a
Re: A6 misfire
On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>
>
>
>
>
> <steve68s(remove)@btinternet.com> wrote:
>
> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
> >> > Jims Audi <14for...@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- Hide quoted text -
>
> - Show quoted text -
More info:
I replaced the injector on cylinder #4. Bought a VAG reader at
virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
the codes ran the engine and reread them. I got P1458, P0030 and
P0304. Are you sre about the ECU? There is a test on the reader to
test the ECU. What about the radio code when I disconnect the battery?
> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>
>
>
>
>
> <steve68s(remove)@btinternet.com> wrote:
>
> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
> >> > Jims Audi <14for...@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- Hide quoted text -
>
> - Show quoted text -
More info:
I replaced the injector on cylinder #4. Bought a VAG reader at
virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
the codes ran the engine and reread them. I got P1458, P0030 and
P0304. Are you sre about the ECU? There is a test on the reader to
test the ECU. What about the radio code when I disconnect the battery?
#45
Guest
Posts: n/a
Re: A6 misfire
On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>
>
>
>
>
> <steve68s(remove)@btinternet.com> wrote:
>
> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
> >> > Jims Audi <14for...@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- Hide quoted text -
>
> - Show quoted text -
More info:
I replaced the injector on cylinder #4. Bought a VAG reader at
virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
the codes ran the engine and reread them. I got P1458, P0030 and
P0304. Are you sre about the ECU? There is a test on the reader to
test the ECU. What about the radio code when I disconnect the battery?
> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>
>
>
>
>
> <steve68s(remove)@btinternet.com> wrote:
>
> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
> >> > Jims Audi <14for...@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- Hide quoted text -
>
> - Show quoted text -
More info:
I replaced the injector on cylinder #4. Bought a VAG reader at
virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
the codes ran the engine and reread them. I got P1458, P0030 and
P0304. Are you sre about the ECU? There is a test on the reader to
test the ECU. What about the radio code when I disconnect the battery?
#46
Guest
Posts: n/a
Re: A6 misfire
On Mon, 24 Sep 2007 16:48:13 -0700, Jims Audi <14forest@earthlink.net> wrote:
>On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
>> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>>
>> <steve68s(remove)@btinternet.com> wrote:
>>
>> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
>> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
>> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
>> >> > Jims Audi <14for...@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
>>
>> TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
>> position, wait three minutes. No biggie...
>>
>More info:
>I replaced the injector on cylinder #4. Bought a VAG reader at
>virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
>the codes ran the engine and reread them. I got P1458, P0030 and
>P0304. Are you sre about the ECU? There is a test on the reader to
>test the ECU. What about the radio code when I disconnect the battery?
Who said anything about an ECU?
P0030 is a bogus OBD2 code. Try again. The second digit cannot be 0.
P0304 is a generic OBD2 code for cylinder 4 misfire. Got a bad coil pack?
P1458 is an Audi-specific OBD2 code for "Exhaust gas temperature sensor 2
short to ground"
/daytripper
'00 s4 6spd
>On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
>> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>>
>> <steve68s(remove)@btinternet.com> wrote:
>>
>> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
>> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
>> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
>> >> > Jims Audi <14for...@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
>>
>> TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
>> position, wait three minutes. No biggie...
>>
>More info:
>I replaced the injector on cylinder #4. Bought a VAG reader at
>virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
>the codes ran the engine and reread them. I got P1458, P0030 and
>P0304. Are you sre about the ECU? There is a test on the reader to
>test the ECU. What about the radio code when I disconnect the battery?
Who said anything about an ECU?
P0030 is a bogus OBD2 code. Try again. The second digit cannot be 0.
P0304 is a generic OBD2 code for cylinder 4 misfire. Got a bad coil pack?
P1458 is an Audi-specific OBD2 code for "Exhaust gas temperature sensor 2
short to ground"
/daytripper
'00 s4 6spd
#47
Guest
Posts: n/a
Re: A6 misfire
On Mon, 24 Sep 2007 16:48:13 -0700, Jims Audi <14forest@earthlink.net> wrote:
>On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
>> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>>
>> <steve68s(remove)@btinternet.com> wrote:
>>
>> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
>> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
>> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
>> >> > Jims Audi <14for...@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
>>
>> TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
>> position, wait three minutes. No biggie...
>>
>More info:
>I replaced the injector on cylinder #4. Bought a VAG reader at
>virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
>the codes ran the engine and reread them. I got P1458, P0030 and
>P0304. Are you sre about the ECU? There is a test on the reader to
>test the ECU. What about the radio code when I disconnect the battery?
Who said anything about an ECU?
P0030 is a bogus OBD2 code. Try again. The second digit cannot be 0.
P0304 is a generic OBD2 code for cylinder 4 misfire. Got a bad coil pack?
P1458 is an Audi-specific OBD2 code for "Exhaust gas temperature sensor 2
short to ground"
/daytripper
'00 s4 6spd
>On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
>> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>>
>> <steve68s(remove)@btinternet.com> wrote:
>>
>> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
>> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
>> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
>> >> > Jims Audi <14for...@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
>>
>> TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
>> position, wait three minutes. No biggie...
>>
>More info:
>I replaced the injector on cylinder #4. Bought a VAG reader at
>virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
>the codes ran the engine and reread them. I got P1458, P0030 and
>P0304. Are you sre about the ECU? There is a test on the reader to
>test the ECU. What about the radio code when I disconnect the battery?
Who said anything about an ECU?
P0030 is a bogus OBD2 code. Try again. The second digit cannot be 0.
P0304 is a generic OBD2 code for cylinder 4 misfire. Got a bad coil pack?
P1458 is an Audi-specific OBD2 code for "Exhaust gas temperature sensor 2
short to ground"
/daytripper
'00 s4 6spd
#48
Guest
Posts: n/a
Re: A6 misfire
On Mon, 24 Sep 2007 16:48:13 -0700, Jims Audi <14forest@earthlink.net> wrote:
>On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
>> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>>
>> <steve68s(remove)@btinternet.com> wrote:
>>
>> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
>> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
>> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
>> >> > Jims Audi <14for...@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
>>
>> TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
>> position, wait three minutes. No biggie...
>>
>More info:
>I replaced the injector on cylinder #4. Bought a VAG reader at
>virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
>the codes ran the engine and reread them. I got P1458, P0030 and
>P0304. Are you sre about the ECU? There is a test on the reader to
>test the ECU. What about the radio code when I disconnect the battery?
Who said anything about an ECU?
P0030 is a bogus OBD2 code. Try again. The second digit cannot be 0.
P0304 is a generic OBD2 code for cylinder 4 misfire. Got a bad coil pack?
P1458 is an Audi-specific OBD2 code for "Exhaust gas temperature sensor 2
short to ground"
/daytripper
'00 s4 6spd
>On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
>> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>>
>> <steve68s(remove)@btinternet.com> wrote:
>>
>> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
>> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
>> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
>> >> > Jims Audi <14for...@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
>>
>> TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
>> position, wait three minutes. No biggie...
>>
>More info:
>I replaced the injector on cylinder #4. Bought a VAG reader at
>virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
>the codes ran the engine and reread them. I got P1458, P0030 and
>P0304. Are you sre about the ECU? There is a test on the reader to
>test the ECU. What about the radio code when I disconnect the battery?
Who said anything about an ECU?
P0030 is a bogus OBD2 code. Try again. The second digit cannot be 0.
P0304 is a generic OBD2 code for cylinder 4 misfire. Got a bad coil pack?
P1458 is an Audi-specific OBD2 code for "Exhaust gas temperature sensor 2
short to ground"
/daytripper
'00 s4 6spd
#49
Guest
Posts: n/a
Re: A6 misfire
On Mon, 24 Sep 2007 16:48:13 -0700, Jims Audi <14forest@earthlink.net> wrote:
>On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
>> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>>
>> <steve68s(remove)@btinternet.com> wrote:
>>
>> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
>> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
>> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
>> >> > Jims Audi <14for...@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
>>
>> TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
>> position, wait three minutes. No biggie...
>>
>More info:
>I replaced the injector on cylinder #4. Bought a VAG reader at
>virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
>the codes ran the engine and reread them. I got P1458, P0030 and
>P0304. Are you sre about the ECU? There is a test on the reader to
>test the ECU. What about the radio code when I disconnect the battery?
Who said anything about an ECU?
P0030 is a bogus OBD2 code. Try again. The second digit cannot be 0.
P0304 is a generic OBD2 code for cylinder 4 misfire. Got a bad coil pack?
P1458 is an Audi-specific OBD2 code for "Exhaust gas temperature sensor 2
short to ground"
/daytripper
'00 s4 6spd
>On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
>> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>>
>> <steve68s(remove)@btinternet.com> wrote:
>>
>> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
>> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>>
>> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
>> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
>> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
>> >> > Jims Audi <14for...@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
>>
>> TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
>> position, wait three minutes. No biggie...
>>
>More info:
>I replaced the injector on cylinder #4. Bought a VAG reader at
>virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
>the codes ran the engine and reread them. I got P1458, P0030 and
>P0304. Are you sre about the ECU? There is a test on the reader to
>test the ECU. What about the radio code when I disconnect the battery?
Who said anything about an ECU?
P0030 is a bogus OBD2 code. Try again. The second digit cannot be 0.
P0304 is a generic OBD2 code for cylinder 4 misfire. Got a bad coil pack?
P1458 is an Audi-specific OBD2 code for "Exhaust gas temperature sensor 2
short to ground"
/daytripper
'00 s4 6spd
#50
Guest
Posts: n/a
Re: A6 misfire
On Sep 24, 8:13 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
> On Mon, 24 Sep 2007 16:48:13 -0700, Jims Audi <14for...@earthlink.net> wrote:
> >On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
> >> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>
> >> <steve68s(remove)@btinternet.com> wrote:
>
> >> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
> >> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> >> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
> >> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> >> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
> >> >> > Jims Audi <14for...@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
>
> >> TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
> >> position, wait three minutes. No biggie...
>
> >More info:
> >I replaced the injector on cylinder #4. Bought a VAG reader at
> >virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
> >the codes ran the engine and reread them. I got P1458, P0030 and
> >P0304. Are you sre about the ECU? There is a test on the reader to
> >test the ECU. What about the radio code when I disconnect the battery?
>
> Who said anything about an ECU?
>
> P0030 is a bogus OBD2 code. Try again. The second digit cannot be 0.
> P0304 is a generic OBD2 code for cylinder 4 misfire. Got a bad coil pack?
> P1458 is an Audi-specific OBD2 code for "Exhaust gas temperature sensor 2
> short to ground"
>
> /daytripper
> '00 s4 6spd- Hide quoted text -
>
> - Show quoted text -
I must have written P0030 down wrong, It was a generic cylinder
misfire. I already replaced the coil pack, spark plug (although it
might be fouled again) and the injector. Could P1458 cause cylinder
misfire?
> On Mon, 24 Sep 2007 16:48:13 -0700, Jims Audi <14for...@earthlink.net> wrote:
> >On Sep 23, 6:35 pm, daytripper <day_tri...@REMOVEyahoo.com> wrote:
> >> On Sun, 23 Sep 2007 23:30:34 +0100, "Steve68s"
>
> >> <steve68s(remove)@btinternet.com> wrote:
>
> >> >"Sue Ridge" <nos...@2daybtinternet.com> wrote in message
> >> >news:sNGdnR6CA9Mu6GjbRVnytgA@bt.com...
>
> >> >> "Kevin McMurtrie" <mcmur...@dslextreme.com> wrote in message
> >> >>news:mcmurtri-EF747E.13474516092007@sn-radius.vsrv-sjc.supernews.net...
> >> >> > In article <1189947424.221814.238...@k79g2000hse.googlegroups .com>,
> >> >> > Jims Audi <14for...@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
>
> >> TBU recal after battery disconnect/reconnect: put key in ignition, turn to run
> >> position, wait three minutes. No biggie...
>
> >More info:
> >I replaced the injector on cylinder #4. Bought a VAG reader at
> >virtualvillage.com for $139 bucks. Reads OBDII and CAN too. I cleared
> >the codes ran the engine and reread them. I got P1458, P0030 and
> >P0304. Are you sre about the ECU? There is a test on the reader to
> >test the ECU. What about the radio code when I disconnect the battery?
>
> Who said anything about an ECU?
>
> P0030 is a bogus OBD2 code. Try again. The second digit cannot be 0.
> P0304 is a generic OBD2 code for cylinder 4 misfire. Got a bad coil pack?
> P1458 is an Audi-specific OBD2 code for "Exhaust gas temperature sensor 2
> short to ground"
>
> /daytripper
> '00 s4 6spd- Hide quoted text -
>
> - Show quoted text -
I must have written P0030 down wrong, It was a generic cylinder
misfire. I already replaced the coil pack, spark plug (although it
might be fouled again) and the injector. Could P1458 cause cylinder
misfire?