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Thread: 04 gto 4l60 has manual tune installed?

  1. #1
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    Default 04 gto 4l60 has manual tune installed?

    Heres the story, we just got a roller gto and put our own drivetrain in, and the past owner had a drag setup with a th400 (mechanical trans) installed..

    I pull the tune out and notice its a manual tune, probally because the non electronic shifting transmission?

    How can I swap the tune out where its a automatic calibration.. In the first screen where the vin shows for calibration it says Manual Trans?

  2. #2
    Joe (Moderator) joecar's Avatar
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    Locate a 2004 auto trans GTO file at www.tunefiledepot.com having the same OS id as your file;

    and then either/or:
    - swap the Transmission and Transmission Diagnostics segments from that file into your file;
    - swap all the other segments from your file into that file;

    if you can't find a same OS id file, then you have to copy all your non-trans tables over (table-by-table) into that file.
    Last edited by joecar; December 15th, 2013 at 01:34 PM.

  3. #3
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    Quote Originally Posted by joecar View Post
    Locate a 2004 auto trans GTO file at www.tunefiledepot.com having the same OS id as your file;

    and then either/or:
    - swap the Transmission and Transmission Diagnostics segments from that file into your file;
    - swap all the other segments from your file into that file;

    if you can't find a same OS id file, then you have to copy all your non-trans tables over (table-by-table) into that file.
    How do I swap transmission tuning and segments? it seems easier than redoing the entire tune the other way
    Last edited by joecar; December 15th, 2013 at 01:35 PM.

  4. #4
    Joe (Moderator) joecar's Avatar
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    I fixed a typo in my post above.

    In the V7 tunetool:
    - open your target tune file,
    - open as alternate the segment donor tune file,
    - do Edit->Copy Entire Segment->Transmission,
    - do Edit->Copy Entire Segment->Transmission Diagnostics,
    - do Save As of the target file.

    You may also have to copy some of the Speedo parameters, for example the 4L60E VSS reluctor is 40x vs the M6 reluctor 17x.

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