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Thread: 2004 Impala with a 3.8L

  1. #1
    Carb and Points!
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    2004 Impala with a 3.8L

    It has a 12583827 ECM with a YFBR application. After replacing or reflashing the ECM, can someone describe the Re-learn procedures which are required?

    Thanks,
    RD

  2. #2
    Administrator
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    There really is no "re-learn" process to go through. If you're trying to get the car to pass OBDII emissions testing then you want to do an OBDII drive cycle.
    http://www.obdii.com/drivecycle.html

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