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Forum: GM V8 Tuning - Engine, Gas (Gen 3)

(1997-2009, LS1, LS6, ...)

  1. Sticky Thread Sticky: If you want us to help with a tune or scan issue post your .hpt file, log & .cfg too.

    Started by jimmyblue, 10-19-2009
    92 Attachment(s)
    • Replies: 0
    • Views: 106,771
    jimmyblue
    10-19-2009 Go to last post

  2. Sticky Thread Sticky: READ ME!!! General tuning info and how-to's

    Started by WS6FirebirdTA00, 02-07-2006
    • Replies: 0
    • Views: 290,633
    WS6FirebirdTA00
    02-07-2006 Go to last post

  1. 1998 vortec connection issues

    Started by tlott44, 02-07-2023
    • Replies: 10
    • Views: 1,145
    tlott44
    02-08-2023 Go to last post

  2. Lean for ~30 seconds after start up

    Started by fastslvblkcar, 02-08-2023
    4 Attachment(s)
    • Replies: 3
    • Views: 547
    GHuggins
    02-08-2023 Go to last post

  3. Dirty 2 step ?

    Started by Dal.2000, 02-06-2023
    • Replies: 6
    • Views: 1,080
    RDF1
    02-08-2023 Go to last post

  4. Tach is off by 30% on L29 0411 PCM setup

    Started by brusk001, 02-07-2023
    • Replies: 1
    • Views: 587
    TheMechanic
    02-07-2023 Go to last post

  5. Question Can you VIEW a scan in 3 bar, on a 2 bar OS, if you have a 3 bar MAP sensor?

    Started by rel3rd, 07-07-2021
    4 Attachment(s)
    • Replies: 6
    • Views: 1,525
    kevin87turbot
    02-07-2023 Go to last post

  6. Mpvi2 not talking to PCM please help

    Started by X_Racing1, 01-24-2023
    • Replies: 10
    • Views: 1,170
    GHuggins
    02-05-2023 Go to last post

  7. Any good GM gen 3 LS tuners in the North Tampa Florida area?

    Started by 04Silverado4.8S366, 02-05-2023
    • Replies: 1
    • Views: 572
    N2speed
    02-05-2023 Go to last post

  8. crank, no start after changing injector data

    Started by djamesp, 02-04-2023
    5 Attachment(s)
    • Replies: 7
    • Views: 1,052
    djamesp
    02-05-2023 Go to last post

  9. Help with GM 25326903 injector Data- 04 Silverado

    Started by 04Silverado4.8S366, 02-05-2023
    • Replies: 3
    • Views: 1,143
    blindsquirrel
    02-05-2023 Go to last post

  10. Idle hiccup after warm start

    Started by jfigus, 02-05-2023
    • Replies: 0
    • Views: 375
    jfigus
    02-05-2023 Go to last post

  11. dfco settings

    Started by 6.0 van, 06-06-2022
    4 Pages •
    1 2 3 ... 4
    2 Attachment(s)
    • Replies: 68
    • Views: 19,064
    murfie
    02-05-2023 Go to last post

  12. 8.1 dbc conversion help

    Started by 94heritage, 02-04-2023
    • Replies: 6
    • Views: 930
    Fast4.7
    02-04-2023 Go to last post

  13. Best tuning strategy for T56 into 2005 4.8 4L60 GMT800

    Started by eighty6gt, 01-23-2023
    • Replies: 3
    • Views: 1,057
    eighty6gt
    02-04-2023 Go to last post

  14. Which cable do I need to tune a 2004 Avalanche?

    Started by _Bowser_, 01-30-2023
    • Replies: 10
    • Views: 1,028
    kevin87turbot
    02-04-2023 Go to last post

  15. L29 454 Idle tuning assistance

    Started by brusk001, 02-03-2023
    3 Attachment(s)
    • Replies: 0
    • Views: 491
    brusk001
    02-03-2023 Go to last post

  16. Cammed C5 stumbles when going into gear. Cracker or follower?

    Started by JASON11WS6, 01-31-2023
    • Replies: 11
    • Views: 1,385
    2xLS1
    02-03-2023 Go to last post

  17. Having trouble tuning VE LTFT

    Started by taguru, 02-02-2023
    2 Attachment(s)
    • Replies: 6
    • Views: 875
    Alvin
    02-03-2023 Go to last post

  18. red/Blue ECU reads but won't prompt for credits/licensing HELP Please

    Started by jelucas1225, 02-02-2023
    • Replies: 4
    • Views: 667
    2xLS1
    02-02-2023 Go to last post

  19. 8.1 marine injectors

    Started by bigredtruck, 05-10-2016
    2 Attachment(s)
    • Replies: 11
    • Views: 9,512
    RDF1
    02-01-2023 Go to last post

  20. 2003 Suburban 2500 6.0/4l80e Basic Tuning Questions

    Started by Kannif82, 01-29-2023
    2 Attachment(s)
    • Replies: 9
    • Views: 1,422
    Fast4.7
    01-31-2023 Go to last post
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