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Forum: Duramax LB7

Duramax 2001-2004 LB7, incl DSP custom OS.

  1. Cool Lb7 dsp5 defuel problem help?

    Started by DMAXTIM, July 14th, 2011
    • Replies: 0
    • Views: 3,219
    DMAXTIM
    July 14th, 2011 Go to last post

  2. fuel milage

    Started by tippyd, February 21st, 2008
    • Replies: 1
    • Views: 3,210
    The Neens
    February 22nd, 2008 Go to last post

  3. LB7 PID question

    Started by dndj, November 20th, 2020
    • Replies: 1
    • Views: 3,197
    dndj
    November 30th, 2020 Go to last post

  4. Couple little questions

    Started by samdweezel05, November 21st, 2008
    • Replies: 1
    • Views: 3,166
    uwyo_dmax
    November 22nd, 2008 Go to last post

  5. cuts out in upper rpm and from 65-105 mph for a few seconds?

    Started by Scarface, July 31st, 2015
    • Replies: 3
    • Views: 3,163
    Scarface
    August 7th, 2015 Go to last post

  6. Screwy Problem From Tuning LB7

    Started by Duramax 6.6L, November 4th, 2011
    • Replies: 3
    • Views: 3,161
    Duramax 6.6L
    November 4th, 2011 Go to last post

  7. dsp5 defueling

    Started by SGFastMax, February 14th, 2010
    • Replies: 1
    • Views: 3,146
    GMC-2002-Dmax
    February 15th, 2010 Go to last post

  8. LB7 and 30 over injectors

    Started by pavetim, October 18th, 2016
    • Replies: 0
    • Views: 3,144
    pavetim
    October 18th, 2016 Go to last post

  9. Cool NEWBIE: LB7, 33 Sac Nozzle Tuning

    Started by asemaster@live.com, June 14th, 2023
    • Replies: 0
    • Views: 3,144
    asemaster@live.com
    June 14th, 2023 Go to last post

  10. OS# 15063376 01 duramax issues

    Started by ryanb, June 8th, 2014
    • Replies: 3
    • Views: 3,119
    KB3MMX
    October 2nd, 2014 Go to last post

  11. trans not shifting propely

    Started by lb7/76camaro, June 15th, 2010
    1 Attachment(s)
    • Replies: 2
    • Views: 3,113
    lb7/76camaro
    June 20th, 2010 Go to last post

  12. Removing Pilot Injection

    Started by WisconsinHick1, February 1st, 2015
    • Replies: 2
    • Views: 3,103
    WisconsinHick1
    February 1st, 2015 Go to last post

  13. Need OS for 01 lb7 pcm

    Started by red12secz28, November 21st, 2007
    • Replies: 1
    • Views: 3,098
    GMPX
    November 21st, 2007 Go to last post

  14. Question 01 lb7 serial number changed...details inside

    Started by Nmband13, May 27th, 2015
    4 Attachment(s)
    • Replies: 1
    • Views: 3,091
    Nmband13
    May 29th, 2015 Go to last post

  15. edge cts /cs

    Started by mellor, January 28th, 2013
    • Replies: 1
    • Views: 3,085
    dieselguy9311
    February 1st, 2013 Go to last post

  16. $0534 pleas help

    Started by astolte2, July 3rd, 2013
    • Replies: 0
    • Views: 3,073
    astolte2
    July 3rd, 2013 Go to last post

  17. Exclamation NEED HELP TUNING (just got my efi live!)

    Started by dubya, February 12th, 2010
    • Replies: 0
    • Views: 3,045
    dubya
    February 12th, 2010 Go to last post

  18. What to change and how to change

    Started by gigabrock, July 19th, 2012
    • Replies: 1
    • Views: 3,045
    Brian1
    July 20th, 2012 Go to last post

  19. U1000 Codes After Tuning

    Started by WisconsinHick1, April 5th, 2016
    • Replies: 0
    • Views: 3,043
    WisconsinHick1
    April 5th, 2016 Go to last post

  20. Single tune fine DSP5 engine stalls

    Started by catman3126, December 27th, 2013
    • Replies: 2
    • Views: 3,033
    catman3126
    December 29th, 2013 Go to last post
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