[XanderWiFi]

I have no SES lights or check engine lights. No randomly and none permanently. Sounds more like a prelude to one though.

So clean up the IAC valve is sounds? Anyone post a how to for this? Not familiar with it.

I am assuming it is the O2S1 sensor (pre-cat) because well, it was moved from the top of the headers to where they all mold into one pipe before hitting the cat. I have not touched any sensors below the catalytic converter.