Results 1 to 8 of 8

Thread: Stock 12631085 anyone?

  1. #1
    Junior Member SwedeBurb's Avatar
    Join Date
    Jan 2008
    Posts
    18

    Default Stock 12631085 anyone?

    I'm looking for a stock 12631085 file... anyone have a copy to share?

    /Stefan

  2. #2
    Lifetime Member GMPX's Avatar
    Join Date
    Apr 2003
    Posts
    13,148

    Default

    To suit what vehicle / engine Stefan?
    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #3
    Junior Member SwedeBurb's Avatar
    Join Date
    Jan 2008
    Posts
    18

    Default

    2005 Chevy Colorado Z71 3.5L, 4L60E, 3:73 (1GCDT196358139621)

  4. #4
    Lifetime Member
    Join Date
    Aug 2010
    Posts
    1,934

    Default

    Hello Stefan,

    OS 12631085 is an update (garage shudder, etc.) to the OEM original OS 12597778 - from a 2005 Colorado L52 3.5 L 4L60. I have the original OS on file - from a 2005 Colorado with 3.42 gears.

    Not sure if that is of any use to you ...


    Regards,
    Taz

  5. #5
    Junior Member SwedeBurb's Avatar
    Join Date
    Jan 2008
    Posts
    18

    Default

    Beggars can't be choosers so I'll take whatever OS I can get ...I need to program a blank PCM.

    /Stefan

  6. #6
    Lifetime Member
    Join Date
    Aug 2010
    Posts
    1,934

    Default

    Hello Stefan,

    Attached below is an original (never modified) tune from a 2005 Colorado with the 3.5 L I5 4L60E 4 x 4 - it still has the original OEM OS 12597778. Hopefully this will work for your application.


    Regards,
    Taz

  7. #7
    Junior Member SwedeBurb's Avatar
    Join Date
    Jan 2008
    Posts
    18

    Default

    Thank you very much!

    /Stefan

  8. #8
    New Member
    Join Date
    Sep 2022
    Posts
    1

    Default

    Quote Originally Posted by Taz View Post
    Hello Stefan,

    OS 12631085 is an update (garage shudder, etc.) to the OEM original OS 12597778 - from a 2005 Colorado L52 3.5 L 4L60. I have the original OS on file - from a 2005 Colorado with 3.42 gears.

    Not sure if that is of any use to you ...


    Regards,
    Taz
    I know it has been a long time, but do you still have that file? I have a bin with a corrupted OS.
    Click image for larger version. 

Name:	12597778.PNG 
Views:	160 
Size:	24.8 KB 
ID:	24224

Similar Threads

  1. Stock 2.2l 98 S-10
    By trudynosports in forum IL4, 97-01 PCM and 02+ P11 PCM
    Replies: 16
    Last Post: July 6th, 2010, 09:18 AM
  2. GETTING some HP from a stock Gen-IV V8
    By A.O.A in forum Gen IV V8 Specific
    Replies: 11
    Last Post: June 7th, 2009, 08:57 PM
  3. Stock 99 Tune.
    By shadyst in forum Gen III V8 Specific
    Replies: 2
    Last Post: June 7th, 2009, 08:23 PM
  4. Looking for stock OS 12595692
    By Redline Motorsports in forum Gen IV V8 Specific
    Replies: 15
    Last Post: May 19th, 2007, 01:11 AM
  5. Need a stock tune.
    By smokin2002 in forum General (Petrol, Gas, Ethanol)
    Replies: 3
    Last Post: April 4th, 2006, 12:16 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
  •