A week ago I bought this car and the only error code on it at the time was a p1504 for faulty idle air control valve. The car would stall at redlights and stopsigns, so I took care of it. The car no longer stalls but now it has a check engine light on with a bunch of different codes all pretty much saying lean or rich fuel mixture, and it cant adjust the trim in both banks. The codes showed up before I replaced the iac valve and I havent cleared them yet. Could a faulty iac valve cause these codes or should I look elsewhere like the map sensor?
have the same problem?
Thursday, April 22nd, 2010 AT 10:11 AM