ScrewedByAFD

OK my car starts hesitating when the boost goes above 6psi... Then the power fc went crazy and started shwoing +.24 kg of boost even with the car off. If i would start the car up it would not go into negative vaccum would stay at 0 or + and hence black smoke and rough idle...so i took the Power fc off hoping it would work.. It worked.. The idling is fine now... Still 6psi + hesitation is there... what could be wrong??



Also the first time i boost after warming the car up to proper temperatures it makes a cracking noise... It is almost stock other than a cat-back....it makes the sound 2-3 times and then its gone

twinturborx7pete

make sure you have your PIM Settings in the PFC set to normal and not Option1, 2, 3, 4... i'm sure thats your problem.

ScrewedByAFD

I have taken off the Power Fc the problem is still there... Nothing over 6-7psi of boost else it starts backfiring and hesitating...

TheCamel

check the readings for the MAP sensor, sounds like a bad one.