re: '91 Audi Coupe 20V (stalling when hot)

[schulz@iatcmail.ed.ray.com (Peter Schulz)]

Chris said:

>I dont know if the list remembers but my Coupe has been having the problem
>consistently stalling when warm.  The car restarts when cold only to stall
>again at operating temp.

Check the throttle potentiometer under the intake hose by
the throttle body. Make sure that its attached to the TB . (on some CQs,
the small screws have a tendancy of working themselves out...

Disconnect and the ISV, clean the contacts, and reconnect.

If this doesn't work, try looking for a vacuum leak.

It's hard for me to believe that your ECU has died...

Maybe Ian Duff or Alex Chernushin has some insight....


Peter Schulz
1990 Coupe Quattro
schulz@ed.ray.com