Engine Cuts out @ 2000 RPM Once the car Warms UP!

[mura]

Car: 928 S4 ,1987 Done 68000 miles, UK Spec.I have the Car In India.

I have a strange problem of engine Cutting out @ 2000 RPM Once the car Warms UP!,Before warming Up it is Normal and Revs to the Redline.It feels like a redline limiter cutting in,that is i have my foot on the gas pedal in the floored position but it bounces of 2000 RPM like it is a Limiter.

After it cools down it runs normally till it warms UP.
There is no High temp or any coolant leak.

I got the car from the previous owner with the Problem and he tells me this happened after he changed the radiator.


Any info will be helpful.

Thanks.

[Iggy]

If you have the ability to swap your fuel injection chips with those from another normally-functioning '87, do so. Yours may be failing. The chips are located in the passenger side footwell, inside a carped box formed by the floormat. Those chips control the rev limit.

Just a guess.