Erratic Idle
My Service Engine Soon light shut off today for some reason (lack of O2 sensor activity Bank 2 sensor 2) and all of a sudden when I put the car into neutral when slowing down, the RPMs dip from the usual 700-800 range to 500-300 range. Could it be the IAC or is it just time for new plugs, or is it time for a new O2 sensor?


