I havent gotten a straight answer on what to do about the engine code that shows up somtimes, if i rev really high my check engine light will appear and its always TPS and when its on ill rev and its will hesitate and sounds like it sucks in air then revs, its weird and all i have to do is shut off the car and turn it back on and its fine. Ill rarely be just driving down the highway and it has came on before and i just shut it off and cut it back on and no problems, whats up with this?