last post was right OBD-0 your car with a OBD-1 harness. Dosent make since and wtf is up witht he chip P28 EX/SI going do. Look from your DX motor remove the engine harness and replace where the old 90 integ harness was then convert the Integra motor (not sure if its a GSR Vtec since you didnt mention it) to OBD-1 it be easyier to get a OBD1 LS intake manifold complet and swap if to the B18 motor, but you need to swap out injectors and dizzy since OBD0 dosent work with OBD1. ECU 1994-1995 Integra LS ECU or if vtec 1994-1995 GSR or in that case its ok to say EX/Si P28 ecu chip. Tranny if using the 90 integ motor and tranny you need a hasport cable to hyrdo covenrsion.