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Thread: Need blackbox 4L80E tune for my 4L80E segment swap

  1. #51
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    Quote Originally Posted by hog View Post
    There are 8 segments on these PCM's did you do more than a single segment swap, like just swapping the trans calibration itself? TC2 calls these "Modules".

    1) The O/S cal.
    2)Engine cal.
    3) HVAC cal.
    4)ABS cal.
    5) Speedo cal.
    6) VIN cal.
    7) Trans cal.

    I'll have to remember that for future calibration.

    peace
    Hog
    Those particular calibration segments are unique to 1996 and 1997 Black Box Vortec PCMs. The 1998 (the one in this thread) to 2000 Black Box Vortec PCMs have different calibration segments.

    Just an FYI ...

  2. #52
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    Quote Originally Posted by Taz View Post
    Those particular calibration segments are unique to 1996 and 1997 Black Box Vortec PCMs. The 1998 (the one in this thread) to 2000 Black Box Vortec PCMs have different calibration segments.

    Just an FYI ...
    yes thanks for the FYI, I was referencing a 97 calibration.

    98 is
    1) The O/S cal.
    2)Engine cal.
    3) Fuel cal.
    4) System
    5) Speedo cal.
    6) VIN cal.
    7) Trans cal.

    So the common segment is still the trans segment. Just wonder why all of his emissions flags were wrong when performing a trans segment swap, unless tehre was more thn justthe Trans segment being swapped.

    Hmm.

    peace
    Hog
    1997 rcsb stock L31 longblock, Marine Intake with 28# EV6 injectors, L35 2700 stall TC,Hooker LT's 2.007 60ft

  3. #53
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    The only segment that I actively and knowingly swapped was that of the transmission per below.

    Quote Originally Posted by EagleMark View Post
    Open your .tun in EFI Live.

    File, Load Alternate for Comparison.

    Edit, Copy entire Segment, choose Transmission, Yes, OK. Save file with new name.

    Flash into your truck.
    1998 GMC Sierra K1500 5.7/4L80E, longtubes, 411 w/COS 5, marine cam/intake, Whipple. 91 octane at 6000'.
    1997 GMC Sierra K3500 7.4/4L80E, 411 w/COS 3, Whipple, small cam.
    2004 Corvette Z06 with longtubes.

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