V8 I.C. Problems

[Steve Kramer]

My mechanic says the temp and the gas gauge are wired to a connector that
sometimes needs to get re-seated.   Also , the seat belt signal and the
switch on the aux. fan are all tied together with this circuit.

Installing new fuses solved this problem.  I may still need to have the
connector fixed on the circuit board.

Steve Kramer
1990 V8q


Per my intermittent problem with my headlights turning on and off, I have
changed out all of my fuses in the passenger footwell.

Don't know if this was some sort of  "placebo" but changing out all the
fuses has seemed to stop these errant problems.  And/or reseating fuses did
the trick.   A lot of my electrical problems that I've attributed to the
eccentricities of Audi's electrical system, were either blown or failing
fuses.  Duhhhh!.

Although , my mechanic has justified the reason my gas gauge/ temp gauge
going on and off is due to a loose connection.   It is working steady for 3
days.

My rear defogger stopped working .  Now it works.

And my headlights no longer flicker ( knock on wood).  However, maybe the
life of this switch will be greatly increased if I go to the relay harness.
I am using the sylvania Silverstar 55 w low-beam halogens " capable" of 41k
h.i.d. type light.   ( don't know if this all b###@hit)

Also my blower motor would only work on high.  Now I have all speeds.

Yippeee !!!!

----- Original Message -----
From: <markallen at hannaford.com>
To: <quattro at audifans.com>
Sent: Monday, October 28, 2002 2:45 PM
Subject: V8 I.C. Problems


>
> I think I know the answer on this problem, but I'll post it to you folks
to
> see if I've reached the right conclusion.
>
> Subject car - 1990 V8 Quattro, 87k. I've owned it for just over a year and
> have put about 12k on it.
> Problem - This late summer I got a low oil warning on the check system. I
> stopped the car, checked my oil level (which was fine) and checked my oil
> pressure gauge while the engine was running (pressure was in the normal
> operating range). I thought it might be a faulty sensor. When I restarted
> the car I received no warning and didn't have a repeat for two months.
>
> Two weeks ago the check system oil alarm started going off again. I
checked
> my oil (again, fine), and noted the pressure gauge read normal. Later,
> while driving down the highway I noted that my temp. gauge had stopped
> working and my trip computer was giving me a weird number for  the m.p.g.
> estimate. That lasted a minute or two before it snapped back to operation
> and didn't give me any further trouble.
>
> Just this week while driving in the evening I saw that my temp. gauge was
> dead, the trip meter was no longer giving me a reading, and my fuel gauge
> was dead as well. This problem has popped up again this weekend, and tends
> to correct itself after the car has been shut off for a few minutes.
> Another new little strange behavior is seeing the seat belt light come on
> briefly (I'm belted in, no warning chimes).
>
> I'm guessing that this is due to faulty contacts on the instrument
cluster.
> I figure I need to pull the IC and use some contact cleaner. Can this be
> done without removing the steering wheel? I'd like to avoid the whole air
> bag issue if it is at all possible or feasible.
>
> I welcome all comments.
>
> Thanks
>
> Mark Allen
> 90 V8
> 90 100 (still awaiting revival)
>
>