I recently swapped my entire interior including the dash to the newer 97 complete with the harness and BCM. I know I could have done it the easy way and stayed with my old harness, but I wanted the newer keyless remote, daytime running lights, and other things the newer harness had to offer.

Well now I have an OBD II socket on an OBD I car and I can't scan it. This is minor because I could swap in the OBD I socket and be fine. But I've been thinking about just swaping to an OBD II PCM. Many of you have swaped from OBD II to OBD I, so going the other way should be no big deal either. I figure I would just have the rear O2 sensors and crank position sensors programed out and it should run fine. One of the main reasons I want to do this is tunning stuff for OBD II cars is easier and cheaper to come by and the OBD II cars have better and more diagnostic codes.

What do you think.

 

So the problem is with the cable right?... wont fit the newer OBD2 ALDL. You could just get the right cable and youd be fine. Going OBD2 is not worth the cost IMO. The only reason to go OBD2 in a car that originally had OBD1 is for those guys who have that high stall converter problem and seeing you have a 6 spd I wouldnt go thru the hassle.

 

The cables is really just an excuse to change it. One other problem is there is nobody around who can dyno tune a OBD I car. There are several places who can dyno tune OBD II cars. Also, there is very little cost to changing over other than the PCM.