[s-cars] Need Help - Won't Stay Running

[Tim Leonard]

Tom,
When you did the t-belt did you pull the electric fan and disconnect the
wiring? Check the ground screw behind and below the left headlight on the
frame rail. It hides under the plumbing for the headlamp washers beside the
washer fluid bottle.
Best,
Tim Leonard
ESCARGO
Michigan
>
> I have an odd problem.  My 92 S4 sometimes will not stay running after
> starting. It will start fine but after about 10 to 15 seconds, it appears
> the fuel pump shuts off and the car dies. It can be restarted but each
time
> it runs for a shorter period until it will not run at all. Most of the
time
> after 6 to 10 tries it starts up and runs fine.
   He put a fuel pressure gauge and confirmed that the fuel pressure starts
to fall and
> then car dies, leading to the idea that we are losing fuel rather than
> ignition or injector trigger signals. Of course, after the car warms up in
> his shop it runs starts and runs fine. He is an Audi expert with almost 30
> years experience and has seen a lot of strange things but this one is new.
> Here is the most interesting point of the story. Whenever it will not
start
> the System Diagnostic display, you know with the bulb check and stuff,
goes
> crazy showing low fuel, bad brake lights, etc AND the front parking lights
> come on! Dim but they are on. Once the problem goes away so does the
problem
> with the display and the parking lights.
> So it sound like a ground problem and the whatever is bad is finding a
> ground path though the parking lights. But how can the parking lights be
> related the engine electronics? This problem did start after I replaced
the
> cam belt drive gear. Since I had to pull the front end off and swing the
> radiator out is it possible I left a ground loose or pulled a ground wire
> off? I don't remember anything like that when I did the job but who knows.
> Well, I hope someone on the list does!