1983 Audi Coupe GT - Engine stalls on quick acceleration

[Huw Powell]

> If the O2 signal is pegged high then the CO adjustemnt may be way out
> of spec.  This happened with the coupe I picked up from Hayes.  The
> CO was adjusted to chase a failing O2 sensor.  Once I adjusted the CO
> to a reasonable value she ran perfectly.  It all depends on how or if
> the O2 sensor is failing/failed.

This is very common on the old CIS cars.  A vacuum leak or other problem 
slowly develops, and someone tweaks the static mixture setting to 
compensate.  This can go on for quite a while before running problems 
can't be eliminated.

If the real problem is then fixed, the car runs like crap because the 
mixture (CO adjustment) is way out of spec.

Anyway, definitely check the WOT switch, it activates at about 2/3 
throttle despite its nickname.

This might be useless, but it's got pretty colors:

http://www.humanspeakers.com/audi/vacuum-system.htm

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/