924dcivic

I have a 92 civic lx not sure wat the stock engine was but the car has been swapped to a b16a2 out of a 2000 civic si. I have the ecu that came with the engine out of the si but i need a jumper harness. If im thinking right i need a harness from obd1 to obd2b if im wrong correct me, but idk if they make a harness for that if so let me know were to find one. If not wat other ecu can i use someone told me i can use a p30 out of a civic or delsol. If anyone has any suggestions please let me know i need to get this fixed asap. The car runs fine somtimes and other times it will cut up really bad and run rough.