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Thread: Cant remove 4L80E torque managment

  1. #1
    Tuner in Training
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    Nov 2018
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    Toledo, OH
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    Cant remove 4L80E torque managment

    I have a 2008 E38 & T42 from a express 2500 van in my turbo 4.8L colorado. I cant for the life of me remove the torque management. i have tried back to stock, zeroing all the tables, but I must be missing something. i am loging ETC, fuel, and spart tq management PIDS and depending on the scenario I am getting all 3 of them but mostly 1 at a time. I will post my tune here but let me know what you guys think.

    Thanks

    Nicks Colorado 67 trans torque management back to stock.hpt

    7.2.19.hpl
    2007 Chevy Colorado 2wd single cab
    2008 4.8L E38 PMC T42 TCM
    Elgin 1840P
    Pac 1218
    4L80E
    S475 Noisy Boi

    She slow 11.45 @ 129

  2. #2
    Potential Tuner razors4us's Avatar
    Join Date
    Jul 2019
    Location
    Minneapolis, MN
    Posts
    7
    maybe check the torque management settings in the transmission area?

  3. #3
    Tuner in Training
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    Nov 2018
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    Toledo, OH
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    I have, I tried to zero everything out and am still getting torque management.
    2007 Chevy Colorado 2wd single cab
    2008 4.8L E38 PMC T42 TCM
    Elgin 1840P
    Pac 1218
    4L80E
    S475 Noisy Boi

    She slow 11.45 @ 129

  4. #4
    Advanced Tuner
    Join Date
    May 2006
    Location
    Seattle, WA
    Posts
    539
    Look at TCM 15416, 15417, 15418, 15419 still has TM in the tune. Torque Reduction = torque management.

    Also need to change the Abuse Mode -> Torque Reduction table.

    There are a handful of tables under the Engine TM tab that need to be raised as well. You're hitting your RPM limiter as well in the log, probably where the TM request is coming from. Look at ECM 12050, in gear limits are at 6600 and your log is showing 6700+. If you dont want it shifting that high, you'll need to lower your RPM and VSS shift points in the trans side so it can complete the shift before hitting the limiter.
    ~Erik~
    2013 Sonic RS - manual, CGM, 6M, sunroof, mods in process
    2008 TrailBlazer 3SS AWD LS2, loaded, dropped, modded, SE22 Performance tuned. And then some...
    2002 TrailBlazer LT 4WD 4.2L I6, lifted, tires, exhaust, SE22 Performance tuned

  5. #5
    Senior Tuner Ben Charles's Avatar
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    Don’t zero it out.. put 1s in the values and will fix your problem

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