I should edit that to say.... he should start at the MAFS, then go to the O2, then go to the catalytic.... its like the finger to the wrist to the elbow.... if you're throwing an engine code.... try playing with the MAFS first, and if it goes away and comes back, that could be it. Like I said though- at first go to the parts store and get a free engine scan. LMK if this helps, or if you have any other questions.


Thanks. I know my shit.