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Thread: Rev Hang / DFCO delay

  1. #1
    Tuner in Training
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    Rev Hang / DFCO delay

    So I am having bad rev hang issues. When im in "normal" driving conditions and push in the clutch for a slow, normal gear shift the RPMS hang for over a second sometimes. Also, i think this is somewhat related, my DFCO can take up to 4 seconds before it cuts fuel after taking foot off the throttle. Has anyone else encountered these issues? It has to be tune based, because neither of these issues happened when i was tuned on Maestro. I have been trying everything i can think of with no joy. I have even dived into the GM forums since that seems to be a common issue for them as well, but their tables are different, so no help there. I would really appreciate some advice. Thanks in advance!

    I will post my current file as well as a log (not sure what you will see with the log, but hey...)..
    Attached Files Attached Files

  2. #2
    Tuner in Training TewSlo's Avatar
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    In my experience that tends to happen if you increase the load axis in torque maps, and/or one of your clutch switches went bad on the GTI.

  3. #3
    Tuner in Training
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    Hmm interesting. Will try to reverse my load axis scaling and see what?s happens. Thanks!

  4. #4
    Advanced Tuner
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    you need to look into opening a ticket with support for them to define KFTVSA

  5. #5
    Tuner in Training
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    Quote Originally Posted by TylerJDubbs View Post
    you need to look into opening a ticket with support for them to define KFTVSA
    I will open another one lol.. That will be my third open ticket. They are going to hate me...