how do you calibrate the tps, also i got a mass air computer today for 50 bucks from my mechanic, im hoping it's the right one. here is the model number if anyone can tell me if it is E9ZF-12A650-A2A IT'S A9L. now all i should need is the wire harness and maf sensor, whats a resonible price for those and what cars have them and what size is good ? 70mm, 73mm, 80mm? thanks. oh and frank, can you guys tell me alittle about the thing called tower shops down there, we have street races up here in phillyand big ant was telling me you guys just chill in a shopping mall parking lot and i was wondering how the cops don't get on your case about loitering?