i just put a racing beat full exhaust on my car...with the fuel cut controller and everything and after driving it for one day the car shut down...i got it runnning again but it sounds like its only running on one rotor....anyone think they might know whats wrong?? please help

there is a chance you blow the motor. 3" exhuast + FCD is a killer without any other mods. espeicaly if you don't have a boost gauge and can let off before boost goes to high...

i got it runnning again but it sounds like its runnning on one rotor

Like he said, RB full exhaust and FCD = Boom



Did you take the car out for a full 3rd gear run...





Do a compression test quickly, remove one spark plug from each chanber and feel with you finger tips bounces from each face. You'll need friend to help. Do one rotor at time. Must likely it will be the rear rotor.



C

Do a compression test. There is a chance it could also be the FCD. Try unplugging the FCD and start the car.

i havnt checked the compression yet but..the spark plugs in the rear arnt getting gas to them..

could it be the O2 sensor?

No, check your fcd like Cheers! said.

boost spikes = bad if you dont know what your boosting at, i dunno about FC's but FD you cant run a full exhaust on a stock ECU and not get spikes so ..

you can run the car without an o2 sensor, your gas mileage would just suck ass.