Results 1 to 4 of 4

Thread: LMM Segments OS 12628594 07.5

  1. #1
    Senior Member
    Join Date
    Jan 2011
    Posts
    188

    Default LMM Segments OS 12628594 07.5

    I have an odd ball here, I looked up the OS and Segments on GM TIS, I have a hard time finding the proper segments.

    The segments I need I can only find in a 12617103 OS and they can't be swapped out. The ones that I am looking for are

    Speedo 12628797 or 12617137
    System 12643813,12628787 or 12617127

    Thanks

    Matt
    Thanks,

    Matt Derks

    www.derkscustomcars.com

  2. #2
    Lifetime Member comnrailpwr's Avatar
    Join Date
    Jun 2011
    Posts
    456

    Default

    I'm no help but as long as you have the correct OS base file you can just do a CAL flash and none of the segments will change. This doesn't help if you need to full flash for other reasons though.


    Sent from my SM-G970U using Tapatalk

  3. #3
    New Member
    Join Date
    Dec 2023
    Posts
    1

    Default

    Matt, did you ever have any luck finding a tune with those segments?
    I am looking for the same numbers
    OS 12628594
    Speedo 12628797
    System 12643813
    Engine operation 12634941

    Thanks,
    Jeff

  4. #4
    Senior Member
    Join Date
    Jan 2011
    Posts
    188

    Default

    Jeff, got them all, I have been building a nice collection, email me, matt@derkscustomcars.com and i'll send them over
    Thanks,

    Matt Derks

    www.derkscustomcars.com

Similar Threads

  1. LMM OS 12628594 (NQG) Option
    By kidturbo in forum Duramax 06 LLY / 06+ LBZ & LMM
    Replies: 9
    Last Post: March 24th, 2019, 11:23 PM
  2. LMM OS 12628594 boost tables
    By GMPX in forum Duramax 06 LLY / 06+ LBZ & LMM
    Replies: 22
    Last Post: September 28th, 2010, 08:23 AM
  3. LMM 12628594 calz update
    By GMPX in forum Duramax 06 LLY / 06+ LBZ & LMM
    Replies: 21
    Last Post: February 3rd, 2010, 04:22 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •