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Anyone have OBD2a to OBD2b ecu pinout

Discussion in 'ECU's, Electronics, and Tuning' started by RedLineHatchSi, Jan 31, 2004.

  1. RedLineHatchSi

    RedLineHatchSi Junior Member

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    sup guys, Im doing a converter harness to use the 99-00 Si ecu on my 97 hatch cx w/ 99 si motor. I kinda have a converter harness i just made, but when I plug the ecu to it, the engine won't start. Is there anyother extra pins I have to add to my engine harness? can anyone help plz.... thanks
     
  2. Tim@Canspeed.com

    Tim@Canspeed.com Member

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    What pins have you changed so far?
     
  3. RedLineHatchSi

    RedLineHatchSi Junior Member

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    none, didnt change any pins, cuz dont know where the pins suppose to go
     
  4. Tim@Canspeed.com

    Tim@Canspeed.com Member

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    Ok. Let's start over. What does you converter harness consist of?
     
  5. RedLineHatchSi

    RedLineHatchSi Junior Member

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    Well, I have a obd2a --> obd1 harness I made, but I want to use the Si ecu to see how the car runs. so I add the obd2b plugs to the obd2a connector, but I notice theres 4 wires I dont know where to go, its A3, A4, A19, and A29 on the Si ecu pinout.
     
  6. Tim@Canspeed.com

    Tim@Canspeed.com Member

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    My wiring books are at the shop. If no one can help you out by Monday I will try to post up some info for you then.
     
  7. RedLineHatchSi

    RedLineHatchSi Junior Member

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  8. bustah49

    bustah49 Junior Member

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  9. pissedoffsol

    pissedoffsol RETIRED

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    in the articles category
    in the reference forum
    there are obd pinouts charted

    have a look.
     
  10. RedLineHatchSi

    RedLineHatchSi Junior Member

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    I dont know where those pins go on a 97 cx harness
     
  11. Tim@Canspeed.com

    Tim@Canspeed.com Member

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  12. RedLineHatchSi

    RedLineHatchSi Junior Member

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