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Thread: Trackhawk VVA LIMP-IN

  1. #1
    Tuner
    Join Date
    Mar 2020
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    Western Canada
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    Trackhawk VVA LIMP-IN

    Hi guys,
    Having an issue with a 2018 Trackhawk, 2.85 pulley, 180 tstat, demon injectors (MOPAR 5038838AA).

    Using the hp security cable.
    Once I installed the new unlocked ECM and the upgrades, the car instantly had code p0600 serial communication.
    I used the demon injector and fuel rail psi settings.

    I must have adjusted something that has corrupted the tune.

    See below for update, issues resolved.
    Disabled code as per tech support and found a factory hardware issue with spark plugs.

    However i want to know what vva-limp in PID for fuel cut source means.
    Last edited by Cranked Automotive; 05-21-2022 at 02:17 AM.

  2. #2
    Tuner
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    Mar 2020
    Location
    Western Canada
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    91
    I set spark to 0 degrees and played around. STFT on both banks when boost kicks in is within 5% now, 11-11.5 aft when it faults, however the engine still feels like its cutting out. I think its just spark plug gap, small detail overlooked.

  3. #3
    Tuner
    Join Date
    Mar 2020
    Location
    Western Canada
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    91
    Found the problem with inconsistent spark plug gap and 1 of them was actually 0 gap.

  4. #4
    Potential Tuner
    Join Date
    Oct 2021
    Posts
    9
    did you ever find out what the vva-limp pid means