RPM Limiter

["Barry P. Lewis" <barry@ctron.com>]

So what's suppost to happen when you "hit the wall" RPM wise?
In my old 82' VW Rabbit, when I reached maximum RPM, the engine would 
run smoothly but the car stopped accelerating. I believe the fuel was 
being interrupted by the fuel pump relay to cause this to happen.

On my 86 4000Q, At max RPM the car shakes and shutters like it running 
on three (out of five) cylinders. Shift to the next gear and everything 
is smooth again. Is it suppost to do that?

Both cars seem to use the same system. A wire from the coil goes to the fuel 
pump relay. It counts the pulses and decides when to shut down. This is the 
CIS-E system with a separate module for ignition and fuel.

Also, sometimes on my Audi, this seem to happen before the tach is on 
the redline (maybe a couple hundred RPMs early).

Do I need a new fuel pump relay? Can you buy these for different RPMs?
 Thanks,

Barry
86 4000CS Quattro