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Thread: Need some os help or guidance on segment swap

  1. #1
    Tuner in Training
    Join Date
    Feb 2010
    Posts
    31

    Need some os help or guidance on segment swap

    I have been running a tune from an 01 Tahoe with DBW and a 4l80e segment for a while now. PCM bricked and I bought a reman PCM that was from a 2002 Escalade with OS 12209203. I am trying to find a compatible OS to do a segment swap to 4l80e. I was running an 01 OS prior and there were lots of options for a segment swap. I cant for the life of me find a file with 4l80e for this OS. If there isn't an option available for this would it be possible to put a different OS on this to have the capability to run a 4l80e. I am assuming that I cant go backwards and flash my 01 OS on a 02? Thanks in advance for any help.

  2. #2
    Advanced Tuner
    Join Date
    May 2006
    Location
    Seattle, WA
    Posts
    538
    Make sure you pick the base tune that works properly with your wiring harness. 01 -> 02 should be ok, as long as the wiring is the same. I'd try to Write Entire your old 01 tune to the new PCM, you might have to spend 2 or 4 credits to license it if you dont have that year/make/model unlocked.

    If you want to stick with an 02 OS, find a stock file with the 12212156 base OS. Plenty of trans options available. The one you have now is one of, if not the, oldest 02 OS'.
    ~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

  3. #3
    Potential Tuner
    Join Date
    Jun 2017
    Posts
    1
    Im in the same predicament.. Did you ever find a 4l80e os to work with the escalade os?? Any Help would be appreciated.

  4. #4
    Advanced Tuner
    Join Date
    May 2006
    Location
    Seattle, WA
    Posts
    538
    What OS are you looking for? Post your stock file up.
    ~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