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Integra b17a1 swap to 89 crx

Discussion in 'ECU's, Electronics, and Tuning' started by crx zc, Jul 31, 2003.

  1. crx zc

    crx zc Junior Member

    Likes Received:
    Feb 16, 2003
    i have a few problems i bought a 93 gsr motor tranny for my crx would it be easy to convert the engine to obd0 or the car to obd1 and does hasport sell the conversion harness by the way the engine has about 70,000 miles and bought the whole thing for 600. not bad deal!!
  2. blundar

    blundar Senior Member

    Likes Received:
    Jul 11, 2003
    Sinsinnasty, Ohio
    you got a steal on the motor. I'd wonder if it was hot for that price :)

    It would be unquestionably easier to convert the motor to OBD0
    It would be unquestionably better to convert the car to OBD1 since OBD1 electronics currently run vtec motors much better.

    Good luck. If you decide to convert to OBD0 I have a line on parts.
  3. D See 2

    D See 2 Senior Member

    Likes Received:
    Sep 29, 2002
    Baltimore, MD
    definitely convert the motor to obd0... all you are going to need is an obd0 distributor and everything else will plug in. you'll need to run an obd0 pr3/pw0 dohc vtec ecu. you'll have to add the vtec wires if its an si, and you'll have to run the vtec and mpfi wires if its a dx.

    here's the wiring for a dx...

    A1 - Injector #1
    A3 - Injector #2
    A5 - Injector #3
    A7 - Injector #4
    A8 - VTEC Soloenoid
    C8 - Secondary Oxygen Sensor
    B5 - VTEC Oil Pressure Sensor
    Move Pin C1 to B10
    Move Pin C2 to B12
    C1 - CYP Sensor Positive(Blue/Green Wire @ Distributor)
    C2 - CYP Sensor Ground(Blue/Yellow Wire @ Distributor)
    Remove Pin B19
    B19 - Knock Sensor
    Remove Pin B2
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