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Thread: shift points

  1. #1
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    Default shift points

    i am new to efi live. i had a friend install mine this past weekend and everything went well.
    the one concern i have is the shift points in my transmission are so close together and at 3000 rpm.
    its doesnt seem normal to me and i dont want my transmission to burn up. anyone have this problem.

  2. #2
    Joe (Moderator) joecar's Avatar
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    what year/model/vehicle...?

    post your .ctz file.

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    Quote Originally Posted by joecar View Post
    what year/model/vehicle...?

    post your .ctz file.
    thanks for responding
    i have a 2015 duramax.

    not sure what .ctz file is?

  4. #4
    Joe (Moderator) joecar's Avatar
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    You might want to post in the Diesel -> Duramax section of the forum (so that people who travel there will see your question)...


    .ctz is your tune file.

  5. #5
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    thanks joecar.
    yeah im not familiar with this at all. i had a friend install it.
    i know we did the tow tune. yesterday i was concerned about the shift points so i tried going back to the full lml stock and it did not turn out well for me so i did go back to tow tune.
    do you know if there is a transmission tune i would need as well?

  6. #6
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    You'll need to work with the tuner who provided your tunes to troubleshoot this and have them provide you with an updated tune.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, starting the mods
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

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    do you think a tcm tune is needed? i just put this tune in last saturday. do i need to update the controller i just got a week ago?

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    Quote Originally Posted by shawn prellwitz View Post
    do you think a tcm tune is needed? i just put this tune in last saturday. do i need to update the controller i just got a week ago?
    You'll have to work with your tuner, at this point your AutoCal is simply a physical piece of hardware that EFILive manufactures. They (and we on the forum) have no idea what the tune looks like, nor can we assist beyond the basic troubleshooting as your tuner is the one who built the custom tune for your truck.

    Sounds like you need a TCM tune as well, but that's really a conversation you need to have with your tuner based on the goals for your truck.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, starting the mods
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  9. #9
    Joe (Moderator) joecar's Avatar
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    +1 discuss with your tuner as Erik said

    ( AutoCal is just the tool to read/write calibrations from/to ECM or TCM... the tuner/person puts in the modifications )

  10. #10
    New Member Agustina's Avatar
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    You'll need to work with the tuner who provided your tunes to troubleshoot this and have them provide you with an updated tune.
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