I replaced the MAF sensor with a new unit...on this car the IAT sensor is located inside the MAF sensor housing. So, yes I did replace it. I am going to test the MAF sensor tomorrow, maybe it was dropped at the parts store, it was not packed well so maybe if it got dropped then its no good. Any other ideas, I am completely stumped. Crankshaft position sensor or camshaft position sensor??? Why would it run perfect with the MAF disconnected???