Ok, I put in my new iacv, and then I reset my ecu by clearing the codes then unhooking the battery. I turned then engine on after I reset my ecu and the tps code was gone. BUT, it is still acting very funny, very much the same way it did before, just not as bad, it stutters alot when I accelerate, and has a very low shitty idle. I now am throwing a cel p1509 which is Idle Air Control Valve circuit failure? What does that mean? Please any help would be great.