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Thread: Trans Throttle Torque Source, Throttle Closing, +STFT

  1. #1
    Senior Tuner
    Join Date
    May 2015
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    Trans Throttle Torque Source, Throttle Closing, +STFT

    Can you guys help me figure out where in my tune I am triggering some sort of limit, just not seeing it...

    If you look at my log 1, right during my 1st gear launch, at 1mph and 2700rpms I am getting a quick "Trans" torque source blip, it was very slight and in that log didn't close the throttle on me, in log 2 you can see it clearly close the throttle on me. I was feeling the car almost like just sit there for a moment, so it def was effecting my 60' times.

    The second issue is in log 1, right after my 1-2 shift, throttle was closed, STFT's went positive, which has to be some torque management kicking in as the car is running in open loop. Thoughts?

    LOG 1.hpl
    LOG 2.hpl
    Diablo Tune 1_3 Bar_v.hpt
    Last edited by 06300CSRT8; 06-08-2018 at 11:54 AM.

  2. #2
    Senior Tuner
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    Feb 2006
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    South Carolina
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    Try the [TCM] 41850 table and any of the "Use ETC" switches in the ECM Torque Management tab.
    Jaime

  3. #3
    Senior Tuner
    Join Date
    May 2015
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    1,908
    Thanks - I cannot locate that TCM table, what is the name of it?

    Curious your thoughts on the STFTs as well, sent my AFRs between shift to below 10.0