This OBD0 DPFI to OBD1 ECU Jumper harness will allow you to convert any 88-91 Civic or CRX DX or STD model (with dual point injection) to MPFI OBD1 with minimal headaches. This harness will plug in to your stock OBD0 ecu plugs on one end, and on the other into your new OBD1 ECU. The harness includes two sets of pigtails that will lead to your new set of four fuel injectors, as well as the additional wires needed for your MPFI distributor, VTEC solenoid, VTEC pressure switch, IAB's, and knock sensor if needed.
Other parts needed for a successful conversion:
• OBD1 or OBD2 distributor that fits your engine
• Distributor connector (engine harness side)
• OBD1 or OBD2 Honda/Acura 4-wire oxygen (O2) sensor
• 4-wire oxygen sensor connector (engine harness side)
• OBD1 ECU
• VTEC, IAB, and knock sensor connectors (engine harness side) if applicable to your engine/ECU combination
• Four fuel injectors that are properly sized for your ECU
• Fuel injector resistor box if using low impedence fuel injectors
• Four fuel injector connectors that fit your fuel injectors
