Ok we have built two s4 motors and one we have in charles's gsl-se witht he S3 intake on. It has full emissions and everything.

Now on the other S4 motor, we have bolted S3 intakes to and it is running like the TPS is out. I have adjusted it 3 times to be sure each time it looks good. Thinking it might be bad I swapped it with another one on charles's car (running fine) and it is doing the same thing. Pulled all the intakes off to make sure there are no leaks and everything looked good.

Car is a S4 motor, with S3 intakes, S3 TB, S3 ecu and fuel system running airpump, ACV, BAC, and full stock exhaust. It will high rev for 45 seconds and then drop down to 1k only to rev up and down, up and down, etc.

Any ideas?

Where is Landers when ya need him?
Chad