Stalling 80q

[Pantelis Giamarellos]

Brandon Hi,

I had similar problems with my RS2.

Turned out it was a faulty engine temperature sensor (the one based on the
back of the engine right on top of the crankshaft and below the cylinder
head.

Cost was less than 15 US$ bought from AUDI spare parts. Took 2 minutes to
change it.

Hope this helps.

Regards
Pantelis



----- Original Message -----
From: Brandon Rogers <brogers at terrix.com>
To: <quattro at audifans.com>
Sent: Monday, March 25, 2002 8:05 PM
Subject: Stalling 80q


> Hi all-
> My sister has a '91 80q that has a stalling problem that has a long story.
> Here goes- It all started in January when the car failed the emission test
> here in Denver--high HC and CO.  Otherwise it seemed to be running very
> well.  The mech said that all testing was leading to bad ECU.  Weird thing
> is, this is already the 2nd ECU she's had.  So she put in a new (used) ECU
> again.  That caused all sorts of idle problems and then staling problems.
> To make a long story less long, over the past 8 weeks, in and out of the
> dealer (ouch!!!) she's had the following replaced with NEW parts:
>
> Cap/ rotor
> Fuel pressure regulator (regulator valve)
> ECU (used)
> Airflow meter
> Idle stabilizer
> air sensor--$600--what the #$%@ is this???  P/N 054-133-471B
> Idle/WOT switch
>
> in all she has spent $2600--which really Pi$$e$ me off.  The dealer mech
did
> drive her car home to try to duplicate her problems.  Here we are.  She
has
> spent all this money and now it occassionally STILL stalls. If it happens,
> it happens within 5 minutes of a warm restart.  When coming to a stop and
> the clutch is pushed in engine drops and never recovers--just stalls.
> easily restarts immediately.  It has only stalled 4 times since picking
the
> car up the last time.  Other times, and this is fairly consistent, during
> the first 5 minutes after warm restart, when coming to a stop in neutral,
> the engine will sometimes drop to ~500 rpm then catch and go back to
normal
> idle.  After ~5 minutes--no issues.  Any ideas??
>
> Also what would cause 2 ECU's to go bad?
>
> She is taking solace in that now her car, which is in overall excellent
> condition--very solid, now has lots of new parts to ensure a very long
life,
> at a not inconsiderable expense.
>
> Any ideas/input greatly appreciated!
>
> Brandon
> '98 A4
> '84 ur
>
>
>
>