Re: Strange engine shut-off

[steveb@newkla.kla.com]

> I drove at about 4000 rpm when I felt that my car (Audi Coupe '84) 
> did not react on pressing the gas pedal. Car started slowing down... 
> When I stopped on the shoulder, all warning lights switched on (as
> when you switch the ignition on before starting the engine) and I
> realized that engine did not work. When I tried to start the engine,
> it started and worked fine. As I mentioned this have happened to me 
> for the third time and it becomes annoying. Can someone give me
> an idea what to check (electrical connections? Some stuck valve?)
> 
... I'm not really familiar with the engine control system for the '84
Coupe GT, but I did have something similar happen on my '83 QTC.  In 
my case the problem was that there is a ground line for the computer 
that connects to the intake manifold (brown wire).  I cleaned up the 
connection (w/very fine sandpaper) and resolved the problem.  The
bad ground was corrupting the signals that the computer needs to 
control the spark and fuel.  4000 RPM is a very magic number on the
QTC ... I don't know if that is also true on the Coupe ...

Hope this helps!
Steve Buchholz
s_buchho@kla.com
San Jose, CA (USA)