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??? another question, the title to my car says 94 but i have a 95 96 opti, that didnt have the vac line on the vent, has the vent tube but the guy didnt have a line hooked to the bellow. Does this mean my car has a obd2 computer how do u check? Or can u do the opti swap and leave the pcm alone. I know alot of guys do the obd2 swap on 94 when they have the 4l60e cuz the pcm reads and shifts faster i have heard, but i have a th350 in my car! WHAT YALL THINK
The only diffrence I know of is the vent, the 1993-4 opti blows cause it does not have a vent and causes problems because of that fact, the 1995-7 has the vent so some guys will put a '95 and up opti on their car to help remove the moister in it. one way I would check of you have OBD I vs OBD II, see how many O2's you have and where they are, OBD I has two, one in the driver side of the "Y" pipe before the cat and one in the passenger exaust manifold, I think that OBD II added a third one right after the cat.
