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Thread: 2019 L84 Timing Dip/Throttle Lag on Tip In

  1. #1
    Potential Tuner
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    Mar 2025
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    2019 L84 Timing Dip/Throttle Lag on Tip In

    Hello Forum Users,

    I have a 2019 L84 truck that I DOD deleted with a BTR Truck Norris Cam (Due to lifter failure). I am having a minor annoying issue and I am not sure the solution.

    Say, when coming up to a red stop light, that then turned green as you come to stop (around 15 MPH), I get a throttle hesitation/lag when trying to accelerate again. You can see it in the log I have attached.

    I noticed that the axle torque source is Idle while I am giving it gas then transitions to Axle after a second or 2. I also see that spark advance goes negative so it is effectively pulling torque.

    Where do I look to determine what to adjust? Virtual torque in this region? Any additional variables to log to see what it going on?

    This is Gen5 Plus so I do not have all the same cals available compared to Gen5 (L83).

    TIA.


    Timing Dip on Tip In.hpl

  2. #2
    Do you have a copy of the file also?
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