1ucb4u

Are you replacing the O2 with a oem replacment or a "bosh make your own plug"?? if bosh did you put correct wires in right places? just a thought....When mine was bogging and stalling I used a small propane torch without the flame of course and turn the gas on a lil and move it around the engine while running it will start reving higher if theres a leak and pinpoint any vacume leaks anywhere I found out my intake mani gasket was bad this way easy fix now runs 10x better

deestibo

ok oem o2 i put in and now i fixed a wire for the heat circuit malfunction but check engine light back on and car is running better but little bog in second gear then runs good but cant get this light out.one other thing have a set of ssautochrome headers and i read while back about they can through a cel but what code does that bring up?