A friend of mine has a 993 RS with engine problems, it doesn't have any power on the top, which we got confirmation on by this:
Torque on the left, crank hp on the right. This engine should have at least 300, maybe 320 since it has better cams and headers.
Lambda:
We have tried a bunch of things:
*Checked cam timing.
*new airflow meter
*removed vario ram
*changed knock sensors
*changed coils
*changed ECU
All cylinders are the same, did 6 identical dyno runs with 1 injector disconnected at a time.
We think that it's an electrical problem and not a mechanical. But we are running out of ideas now...
Here is an older dyno run when the engine ran fine showing 302 crank hp.
