Obd2-obd1 swap with ze issues

[BornSticky]

Ok so I have a 96 mx-3 gs pulled the dead motor and put in my klze which was originally in my 92 mx. I used the engine harness from the 92 and probinator ecu. Engine starts idles ok but once warms up the idle gets a bit rough. Give it gass with clutch pushed in revs fine but when clutch engaged I can have it floored fully and will stall and hesitate check timing and it jumps around a little bit also my speedo isn't working. I've tried looking for more info and on probe talk it says I have to replace some of the wiring under the dash but I'm not 100% sure which ones and if I even actually need to do this with my mx. Any info would help a lot. Thanks

[Daninski]

I have only 1 question, why didn't you use the OBD2 harness/ecu? Have you set the TPS yet? If not start by checking that.

[BornSticky]

I thought it was more of a pain in the a-- trying to weld in extra o2 sensors and had the old harness and ecu

[Daninski]

Actually those are O2 sensor monitors and you could of left them unplugged and you would not of thrown a code, the system would still go into closed loop.