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  1. #1
    2nd Gear

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    Uncleared fault codes

    If you rectify the problem picked up from vcds but do not clear the code. Will the car still run as if the problem is still present until the code is cleared?

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  3. #2
    bearthebruce's Avatar
    Ross-Tech, LLC

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    depends on the problem...

    Is some cases, the ECU will go to normal operation if the faulty device/sensor/condition has been resolved. The fault code remains to let the technician know what was happening. If the MIL indicator is on, it may remain on until the code is cleared.

    There are other cases where the code has to be cleared to reset learned values and get things back on target.

    Now that we talked in generalities, care to share some specifics?
    -Bruce-
    Ross-Tech, LLC
    Bruce@Ross-Tech.com

  4. #3
    Neutral

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    It does depend on the fault but normally the car will run as if the fault was not there.

 

 

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