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Forum: GM EFI Systems

TBI - TPI - MPFI - CFI - SFI

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  1. Each thread is by ECM number with Bins, definition files, wiring diagrams history and tuner information!

    Forum Actions:

    Forum Statistics:

    • Threads: 53
    • Posts: 272
    • Replies: 8
    • Views: 1,658
    09-11-2022 Go to last post
  1. Wide and o2 to run closed loop?

    Started by Rob 689, 08-28-2022
    3 Pages
    1 2 3
    • Replies: 40
    • Views: 6,529
    09-07-2022 Go to last post
  2. Serv No 16196396

    Started by KoolBreeze, 08-19-2018
    • Replies: 13
    • Views: 14,237
    09-06-2022 Go to last post
  3. Worth upgrading my ECM??

    Started by Rob 689, 08-21-2022
    2 Pages
    1 2
    • Replies: 18
    • Views: 3,361
    09-06-2022 Go to last post
    • Replies: 0
    • Views: 596
    09-06-2022 Go to last post
  4. Changing os issues

    Started by tullyh, 09-01-2022
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 5,764
    09-06-2022 Go to last post
  5. GM Quad Driver Chart C3 and P4

    Started by 1project2many, 03-16-2014
    2 Pages
    1 2
    • Replies: 20
    • Views: 17,804
    09-06-2022 Go to last post
  6. bank 2 (red) & lean bank 1 (yellow)

    Started by 30bird, 09-01-2022
    • Replies: 1
    • Views: 741
    09-02-2022 Go to last post
  7. 1226870 data log help

    Started by jcorn, 08-31-2022
    • Replies: 0
    • Views: 537
    08-31-2022 Go to last post
  8. LS Injector Data for LT1

    Started by Terminal_Crazy, 09-09-2018
    • Replies: 6
    • Views: 4,896
    08-31-2022 Go to last post
    • Replies: 9
    • Views: 1,884
    08-30-2022 Go to last post
    • Replies: 0
    • Views: 579
    08-29-2022 Go to last post
  9. 7427 efan help

    Started by Casey, 08-24-2022
    • Replies: 7
    • Views: 1,671
    08-28-2022 Go to last post
  10. No fuel pump prime pulse

    Started by Eds, 08-25-2022
    • Replies: 7
    • Views: 1,730
    08-28-2022 Go to last post
  11. 1988 Chevrolet K3500

    Started by THEMRMCB, 08-24-2022
    gm, tbi
    • Replies: 8
    • Views: 2,272
    08-25-2022 Go to last post
  12. 93 V6 flash

    Started by dbuster, 04-15-2020
    6 Pages
    1 2 3 4 5 ... 6
    • Replies: 89
    • Views: 57,409
    08-19-2022 Go to last post
  13. Dynamic EFI, EBL Flash II, TBI, tuning

    Started by 1967Chevy, 06-08-2022
    2 Pages
    1 2
    • Replies: 20
    • Views: 6,951
    08-16-2022 Go to last post
  14. MEFI4 troubleshooting hard start

    Started by Turbo_Bimmer, 07-21-2022
    2 Pages
    1 2
    • Replies: 21
    • Views: 4,236
    08-16-2022 Go to last post
    • Replies: 6
    • Views: 1,477
    08-14-2022 Go to last post

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