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Forum: Custom Operating Systems

Speed Density, Valet Mode, 2-Step, alpha-N. No Diesel DSP

  1. Talking Sticky Thread Sticky: Custom OS#5

    Started by Black02SS, May 17th, 2006
    34 Pages
    1 2 3 ... 34
    • Replies: 332
    • Views: 132,254
    October 10th, 2016 Go to last post
  1. 2 step possible blown motor 😡

    Started by bstuder11, September 25th, 2016
    2 Pages
    1 2
    • Replies: 11
    • Views: 809,450
    September 26th, 2016 Go to last post
  2. 2005 to 2007 OS

    Started by sehunter, April 26th, 2008
    • Replies: 5
    • Views: 20,071
    August 21st, 2008 Go to last post
  3. Show me your A0014's

    Started by vetteboy2k, March 31st, 2006
    7 Pages
    1 2 3 ... 7
    • Replies: 60
    • Views: 18,808
    November 26th, 2012 Go to last post
  4. Os Faq

    Started by TAQuickness, August 27th, 2006
    2 Pages
    1 2
    • Replies: 15
    • Views: 15,448
    June 15th, 2008 Go to last post
  5. Valet mode finally

    Started by ringram, April 15th, 2006
    5 Pages
    1 2 3 ... 5
    • Replies: 41
    • Views: 14,387
    January 25th, 2008 Go to last post
  6. Can't get this right

    Started by eclispe1, January 28th, 2010
    5 Pages
    1 2 3 ... 5
    • Replies: 49
    • Views: 14,279
    March 27th, 2010 Go to last post
  7. B4005 Small Pulse Adjust How does GM create this table?

    Started by onfire, July 17th, 2007
    5 Pages
    1 2 3 ... 5
    • Replies: 44
    • Views: 13,373
    December 2nd, 2008 Go to last post
  8. Formal Request for COS5 for 1MB PCMs (04 GTO, etc)

    Started by Kevin Doe, December 4th, 2007
    5 Pages
    1 2 3 ... 5
    • Replies: 44
    • Views: 11,622
    August 29th, 2015 Go to last post
  9. E40 2 bar Dyn Air dropping and so is fueling and everything else

    Started by Highlander, April 2nd, 2012
    4 Pages
    1 2 3 ... 4
    • Replies: 34
    • Views: 11,549
    March 9th, 2015 Go to last post
  10. Concerned and aggrivated

    Started by Whippled 496, April 1st, 2008
    5 Pages
    1 2 3 ... 5
    • Replies: 45
    • Views: 11,395
    February 9th, 2009 Go to last post
  11. Exclamation Custom O.S #3 Update for 2003+

    Started by GMPX, January 10th, 2007
    2 Pages
    1 2
    • Replies: 16
    • Views: 11,358
    September 29th, 2008 Go to last post
  12. COS 5 Help Needed Here...Please

    Started by tatasta, April 13th, 2011
    5 Pages
    1 2 3 ... 5
    • Replies: 41
    • Views: 11,071
    May 11th, 2011 Go to last post
  13. Just finished my COS tune and no start

    Started by yzriders182, March 30th, 2013
    6 Pages
    1 2 3 ... 6
    • Replies: 56
    • Views: 10,136
    April 8th, 2013 Go to last post
  14. Help with tune adjustments

    Started by SuperChevy, May 27th, 2011
    6 Pages
    1 2 3 ... 6
    • Replies: 58
    • Views: 9,771
    June 13th, 2011 Go to last post
  15. Trouble loading 2002 OS in 1999 PCM

    Started by Beer99C5, May 5th, 2007
    4 Pages
    1 2 3 ... 4
    • Replies: 36
    • Views: 9,686
    October 9th, 2007 Go to last post
  16. COS help?

    Started by yzriders182, February 19th, 2013
    4 Pages
    1 2 3 ... 4
    • Replies: 33
    • Views: 9,540
    August 8th, 2013 Go to last post
  17. gm os to custom os

    Started by 69camaro5speed, January 19th, 2006
    3 Pages
    1 2 3
    • Replies: 25
    • Views: 9,477
    July 15th, 2007 Go to last post
  18. Jenvey ITBs - COS 5 on an LS1

    Started by bimbleuk, January 15th, 2014
    2 Pages
    1 2
    • Replies: 19
    • Views: 9,379
    June 4th, 2014 Go to last post
  19. WTF....i want a COS5

    Started by Kurtomac, April 27th, 2009
    4 Pages
    1 2 3 ... 4
    • Replies: 33
    • Views: 9,043
    August 14th, 2011 Go to last post
  20. I paid for EFLIve, why can't I flash COS3?

    Started by Mr. P., September 8th, 2009
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 8,869
    September 10th, 2009 Go to last post

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