[V8] V8Q Still no start

[Kneale Brownson]

The thing under the back seat is the central locking pump/control box.

At 05:27 PM 10/3/2005 -0400, Eric Devansky wrote: 
>
> Thanks for the info! Just out of curiosity what is the silver ECU looking box
> under the rear seat? 
>
> As soon as I know what pins to check, I am going to look into it. I hope this
> is something simple. 
>
> ~Eric
>
>
> On 10/3/05, Kneale Brownson <<mailto:kneale at coslink.net>kneale at coslink.net>
> wrote:
>>
>> Engine control unit is under the dash in the driver footwell.  There's a
>> transmission control unit (if your '91 is an auto)  that's just below the
>> ECU.
>>
>> At 10:33 AM 10/3/2005 -0400, Eric Devansky wrote:
>> >Tony~ 
>> >Pin location and specs would be great. Also where is the ECU located in the
>> >'91 V8Q? I hate to ask such a dumb question, but I have driven the car a
>> >total of 250 miles when this happened!
>> >
>> >Thanks for the help,
>> >~Eric
>> >
>> >
>> >On 10/2/05, Tony and Lillie
>> <<mailto:tonyandlillie1 at earthlink.net>tonyandlillie1 at earthlink.net> wrote:
>> >>
>> >> Eric,
>> >> There are a couple of things you need to check. First, did you make sure 
>> >> to
>> >> plug the RPM and Reference sensors into the right connectors? Also, did
>> >> you
>> >> replace the RPM sensor, not the reference sensor? If you have no bouncing
>> >> tach, and no spark, it has nothing to do with the fuel delivery. There is
>>
>> >> something wrong in the delivery of the signal. Next step is probably to
>> >> check the connections at the ECU. Maybe do the resistance check there. If
>> >> you need help with pin location or specs, let me know. I have the manual 
>> >> right next to me.
>> >>
>> >> Tony Hoffman
>> >> ----- Original Message -----
>> >> From: "Eric Devansky" <<mailto:edevansky at gmail.com>edevansky at gmail.com> 
>> >> To: "<mailto:v8 at audifans.com>v8 at audifans.com"
>> <<mailto:V8 at audifans.com>V8 at audifans.com>
>> >> Sent: Sunday, October 02, 2005 8:41 AM
>> >> Subject: [V8] V8Q Still no start 
>> >>
>> >>
>> >> >I replaced the RPM sensor and spark plugs yesterday with no change in
>> the
>> >> >no
>> >> > start condition on my Audi.
>> >> >
>> >> > The engine cranks fine with a slightly different tone than normal, 
>> >> > compression is okay, low on one cyl, but okay on the others. The tach
>> >> does
>> >> > not bounce when cranking, and it is giving me the code for the RPM
>> >> sensor.
>> >> > 
>> >> > The car was driven and parked, and then would not start after that.
>> >> >
>> >> > What else should I check? I am thinking it could be fuel related,
>> what's
>> >> > the
>> >> > best way to diagnose the fuel pump and relays? 
>> >> >
>> >> > Thanks,
>> >> > ~Eric
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>> >>
>> >>
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>