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OBD2 or OBD1?

Discussion in 'HYBRID -> BA-BB /CA-CD' started by acolvard, Dec 10, 2003.

  1. acolvard

    acolvard Junior Member

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    I am installing a USDM 97 h22a4 OBD2 into an 1988 Prelude. I am trying to determine what ECU to use, OBD2 or OBD1. I currently have a Place Racing OBD1 to OBD0 to OBD1 wiring harness. I can by an OBD1 ECU if i need to. I also have a full harness for the OBD2. Also the transmission has ATTS, does that effect ECU selection?
     
  2. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    You'll need an OBD2 ECU, with ATTS capability, but you're going to have a hell of a time getting the ATTS system to work. Not because of the electronics, but because of the axles and halfshaft.
     
  3. acolvard

    acolvard Junior Member

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    Why are the axles a problem?
     
  4. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    As far as I know, you'll need to get custom axles to fit the ATTS tranny and halfshaft.
     
  5. ph8ed4life

    ph8ed4life Junior Member

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    I would say get a non ATTS tranny, go obd1 and switch out parts to make the engine obd1 (Injectors, distributor, etc.) This has been done before on 4th gen preludes, and I am in the first stages of prepping my h22a4 to be obd1 and dropping it into my 92 prelude
     
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