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Thread: Is it possible to get codes or other data on an old ODB 1 car?

  1. #1
    Tuner in Training
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    Is it possible to get codes or other data on an old ODB 1 car?

    Hi, with an adapter cable to go from ODB 1 to ODB 2 would I be able to read any data on my old 1986 Corvette using my HP cable and software? Thanks.

  2. #2
    Tuner in Training
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    Feb 2014
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    No you would need a scanner that supports ob1 gm. The old snap on brick, OTC monitor 2000 or anything newer should work. Those PCMs used a prom chip instead of flash programming like what hp tuners does

  3. #3
    Tuner in Training
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    Quote Originally Posted by badcoupe View Post
    No you would need a scanner that supports ob1 gm. The old snap on brick, OTC monitor 2000 or anything newer should work. Those PCMs used a prom chip instead of flash programming like what hp tuners does
    Thanks, I figured it was a long shot.

  4. #4
    Advanced Tuner
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    Apr 2015
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    You can also short out pins A and B on the ALDL connector and get codes, or you can look into Moates hardware and tunerpro software to get actual data for around $100.