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Thread: Gen 5 6L80 logs

  1. #1
    Potential Tuner
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    Jan 2024
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    Gen 5 6L80 logs

    I'm out of my wheelhouse here so excuse my ignorance if this isn't possible! I'm tuning my 6L80 after a TC install. Following a YouTube video from Matt Sanford. It feels much better than it did before but 2-3 shift is a little funky. It shifts fine, initially, but after the shift the rpms drop a few hundred rpms again. Almost like it went into 4th. I saw where I can data log via VCM Scanner. Would someone be able to see this through some type of graphs and possibly diagnose the issue? I have my tune attached as well as a log file that shows the rpm drop. Again, I'm new to this. Let me know if there are different graphs I can/should be including a log file.

    Tune: Shift points round 2.hpt


    Data Log: 1st.hpl

  2. #2
    Advanced Tuner
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    Aug 2023
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    Quote Originally Posted by GMJosh View Post
    I'm out of my wheelhouse here so excuse my ignorance if this isn't possible! I'm tuning my 6L80 after a TC install. Following a YouTube video from Matt Sanford. It feels much better than it did before but 2-3 shift is a little funky. It shifts fine, initially, but after the shift the rpms drop a few hundred rpms again. Almost like it went into 4th. I saw where I can data log via VCM Scanner. Would someone be able to see this through some type of graphs and possibly diagnose the issue? I have my tune attached as well as a log file that shows the rpm drop. Again, I'm new to this. Let me know if there are different graphs I can/should be including a log file.

    Tune: Shift points round 2.hpt


    Data Log: 1st.hpl
    That log is not going to be helpful for the transmission because you did not log most of the transmission channels.
    Here's a Channel configuration that should give us all the PIDs we need to help you.
    6L80 PIDs.Channels.xml
    Robert Moreau
    Technical Sales and Marketing Support Specialist
    TransGo
    2621 Merced Avenue El Monte, CA 91733 USA
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    https://transgo.com/our-products/