In my area, they just plug the scanner in and see how many time the car started since the code was cleared(if it was cleared at all). if it's more than like 10 and it's clear, you pass! my rear O2 is bad, but it took over 1 month to come back one when I cleared it the first time. I'm giving it another week before I take it in.
Jensen, you look at the engine yet? i need to know if I can sell my TMIC and DP or not.