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obd2 wiring harness or eg ex civic harness

Discussion in 'ECU's, Electronics, and Tuning' started by cooper, Jul 26, 2003.

  1. cooper

    cooper Junior Member

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    i have a 93 civic ex and also a 01 obd2 gsr motor. the motor is already bolted in and ready to be wired. should i use the stock ex p28 ecu or use the obd2 p72 ecu that came with the motor. do i need to use the obd2 gsr wire harness or is there a way to make the ex harness work.
     
  2. AllMotorMonster

    AllMotorMonster Senior Member

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    The 01 GSR engine harness will plug right in.

    You will however need to add:
    Knock Sensor wires
    IAB wires
    Tach wire (factory tach will not work)

    Now, you have to ask yourself?

    Do I want IAB control?
    Yes= P72 OBD1 ecu
    No= P28 OBD1 ecu converted to DOHC specs
     
  3. cooper

    cooper Junior Member

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    the whole harness in side the car all matches up?
     
  4. crxboi

    crxboi Junior Member

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    Okay, I am doing something similiar to my 95 civic sedan. I have a 99 USDM B18C1 Engine, S80 Tranny, and the OBD2 ECU (dunno yet what model). Do i need to purchase a OBD1 GSR ECU? and what model should I get? I want the motor all stock (xcpt for normal bolt-ons). Does anyone have one that I could buy? Mahalo!
     
  5. pissedoffsol

    pissedoffsol RETIRED

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  6. crxboi

    crxboi Junior Member

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    okay, stupid question, BUT what is a IAB? I am pretty new to the whole motor swap between different gens. Thanks!
     
  7. pissedoffsol

    pissedoffsol RETIRED

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    secondary intake air butterflies in the GSR intake manifold.
     
  8. crxboi

    crxboi Junior Member

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    Thanks sol, Keep me in mind since I just got my engine, trans, axles, and the wire harness from that donor car. The guy who I am buying it from didnt have the OBD2 ECU so I dont know what model I have but, if anyone wants to swap OBD2 for a OBD1, I am game!!:D
     
  9. mathematics375

    mathematics375 New Member

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    obd2 96-98 wiring harness

    I'm looking for a obd2 96-98 civic engine wiring harness, can anybody help?
     
  10. George777

    George777 ^^ Likes Bewbies

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    Check the date on the thread, man. Just start a new one.
     
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