I'm having the same problem right now. See my post "erratic idle" from a few days ago. I ordered a new MAF so if you want I will post my results back and let you know if it fixed the problem. I just have a strange feeling that the oils from the KKM may have affected the MAF sensor. We shall see. My next guess for a fix is the throttle body, possibly. I think this is a possibility because all of the teflon coating on the throttle plate is gone. I think there is a possibility that with that coating gone, the airflow may be affected. Though the problem seems more electrical to me. If it was the throttle body it seems the problem should be present ALL the time, and it's not. Just a thought, anyone with more info/intelligence feel free to chime in! Hopefully the MAF will fix it! If not I'm gonna order another IAC and go from there.
