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Forum: Duramax LLY

Duramax 2004i-2005 LLY, incl DSP custom OS.

  1. Newb question. About efi live what it needs equipment wise and if it can rewrite modu

    Started by Leadfootkyle, 3 Weeks Ago
    allison 1000 5 spd.
    • Replies: 0
    • Views: 1,348
    Leadfootkyle
    3 Weeks Ago Go to last post

  2. ATS Co-Pilot causing P0238

    Started by MedicJD, February 5th, 2026
    • Replies: 3
    • Views: 13,365
    MedicJD
    February 22nd, 2026 Go to last post

  3. Question VGT TURBO Possible Incorrect tunes?

    Started by jasonn11611, December 11th, 2025
    • Replies: 3
    • Views: 5,461
    killerbee
    December 21st, 2025 Go to last post

  4. Exclamation Help cant flash tune lly

    Started by jasonn11611, December 12th, 2025
    • Replies: 0
    • Views: 2,914
    jasonn11611
    December 12th, 2025 Go to last post

  5. Suggested Tuners

    Started by kjdonkey, November 10th, 2025
    • Replies: 0
    • Views: 1,514
    kjdonkey
    November 10th, 2025 Go to last post

  6. Help with Pilot reading!

    Started by MedicJD, October 2nd, 2025
    • Replies: 0
    • Views: 840
    MedicJD
    October 2nd, 2025 Go to last post

  7. Lly ecm issues

    Started by Mamu, July 27th, 2025
    • Replies: 3
    • Views: 6,284
    killerbee
    August 3rd, 2025 Go to last post

  8. Possible root causes

    Started by newtodiesel92, July 27th, 2025
    duramax lly 2004
    • Replies: 1
    • Views: 2,476
    killerbee
    August 3rd, 2025 Go to last post

  9. Progressive rumble tune

    Started by DuraMac, March 9th, 2025
    • Replies: 0
    • Views: 3,476
    DuraMac
    March 9th, 2025 Go to last post

  10. 6 Speed Conversions

    Started by YAKPERFORMANCE, January 26th, 2025
    10 Attachment(s)
    • Replies: 5
    • Views: 4,837
    YAKPERFORMANCE
    February 10th, 2025 Go to last post

  11. Help with these injector readings (PW).

    Started by MedicJD, December 17th, 2024
    • Replies: 0
    • Views: 2,388
    MedicJD
    December 17th, 2024 Go to last post

  12. Lbz cp3 in an lly

    Started by shotgunwilly1117, January 27th, 2016
    1 Attachment(s)
    • Replies: 7
    • Views: 10,083
    MedicJD
    December 7th, 2024 Go to last post

  13. LLY Files

    Started by Jtrent93, April 11th, 2023
    2 Attachment(s)
    • Replies: 6
    • Views: 7,122
    MedicJD
    December 7th, 2024 Go to last post

  14. Anyone else dealt with this?

    Started by MedicJD, December 5th, 2024
    • Replies: 4
    • Views: 1,808
    MedicJD
    December 7th, 2024 Go to last post

  15. Education is needed!!

    Started by MedicJD, November 27th, 2024
    • Replies: 2
    • Views: 1,171
    MedicJD
    December 5th, 2024 Go to last post

  16. LBZ Sportsman mapping.

    Started by MedicJD, November 19th, 2024
    • Replies: 0
    • Views: 1,575
    MedicJD
    November 19th, 2024 Go to last post

  17. Rookie Question.

    Started by MedicJD, November 1st, 2024
    • Replies: 0
    • Views: 2,061
    MedicJD
    November 1st, 2024 Go to last post

  18. ANOTHER lly full flash issue, possible bricked ecm?

    Started by Jimmysparkles187, February 25th, 2024
    2 Attachment(s)
    • Replies: 8
    • Views: 13,545
    Lennydmaxguy
    February 27th, 2024 Go to last post

  19. $0101 code when flashing

    Started by 55bowtie, November 27th, 2023
    • Replies: 1
    • Views: 7,838
    55bowtie
    November 29th, 2023 Go to last post

  20. 2005 topkick LLY fuse remove

    Started by Jerod, October 31st, 2023
    • Replies: 7
    • Views: 6,925
    Cougar281
    November 5th, 2023 Go to last post
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