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obd2 and obd1

Discussion in 'ECU's, Electronics, and Tuning' started by Wilshire, Nov 7, 2007.

  1. Wilshire

    Wilshire Big WIll

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    ive got a 97 sol, obd2 and i bought a chipped obd1 ecu. got a harness and installed it. whenever i started it for the first ten minutes or so i heard a really loud buzzing/hissing noise from the cat and it would idle really strangly. then just earlier today i got a check engine light. so i put the stock ecu back in and everything was just fine= no noise or engine light.

    I got to thinking. i put an obd1 ecu into my obd2 car, and i left both o2 sensors in.
    would that have anything to do with the noise from the cat and the check engine light???

    if so should i remove the 02 sensor before or after the cat? and what should i use to plug the hole the sensor comes out of???

    THANKS

    if thats not the case i think i got JACKED on this ecu
     
  2. jamesA

    jamesA Well known pissed off telephone guy VIP

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    Go to autozone and have the CEL checked, the OBD1 ECU isn't going to look for the second O2.
     
  3. Wilshire

    Wilshire Big WIll

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    damn thats not what i wanted to here lol

    thanks
     
  4. norcalgsr

    norcalgsr Honda Master Technician

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    Or just check it yourself.. but yeah you'll need the code(s) from the ECU before you can really determine anything.
     
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