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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!

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    Forum Statistics:

    • Threads: 53
    • Posts: 272
  1. Skipping/spotty data in logs -7747 TBI

    Started by Cadmaro, 01-10-2024
    2 Pages
    1 2
    • Replies: 19
    • Views: 1,594
    01-23-2024 Go to last post
  2. Happy 2024 everyone

    Started by steveo, 01-02-2024
    • Replies: 8
    • Views: 833
    01-23-2024 Go to last post
  3. 68HC11 based PCMs

    Started by Tom H, 01-04-2024
    • Replies: 9
    • Views: 849
    01-21-2024 Go to last post
  4. 1997 F-Body ECM

    Started by Tom H, 01-14-2019
    34 Pages
    1 2 3 4 5 ... 34
    • Replies: 508
    • Views: 342,040
    01-19-2024 Go to last post
  5. Shift Time 0 vs 6.38?

    Started by deva123, 12-31-2023
    • Replies: 11
    • Views: 987
    01-15-2024 Go to last post
  6. TBI Pressure Regulator & Fuel Pump

    Started by Parts, 01-13-2024
    • Replies: 5
    • Views: 475
    01-14-2024 Go to last post
  7. 1995 LT1 Camaro Tuning tips

    Started by fourcams, 01-09-2024
    • Replies: 8
    • Views: 593
    01-13-2024 Go to last post
  8. switching to 3.8l coils $8B

    Started by BigBanks78, 11-07-2023
    2 Pages
    1 2
    • Replies: 18
    • Views: 2,780
    01-08-2024 Go to last post
  9. MEFI 4B Tuning

    Started by martymonaro, 01-03-2024
    • Replies: 2
    • Views: 421
    01-03-2024 Go to last post
  10. 7427 data logs closed loop issue

    Started by Parts, 01-01-2024
    • Replies: 8
    • Views: 609
    01-02-2024 Go to last post
  11. apu1 vs dynamic efi?

    Started by stackz, 11-27-2023
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,218
    01-02-2024 Go to last post
  12. Stupid question

    Started by J3920, 01-01-2024
    • Replies: 5
    • Views: 433
    01-02-2024 Go to last post
  13. lowering VE at low kPa

    Started by nilak, 12-28-2023
    • Replies: 0
    • Views: 250
    12-28-2023 Go to last post
  14. NEED HELP PLEASE ecm swap

    Started by six4chevy, 12-24-2023
    • Replies: 4
    • Views: 489
    12-24-2023 Go to last post
    • Replies: 13
    • Views: 860
    12-24-2023 Go to last post
  15. Knock Sensor, Knock Filter, ESC and swaps!

    Started by JeepsAndGuns, 01-18-2013
    3 Pages
    1 2 3
    • Replies: 43
    • Views: 34,026
    12-23-2023 Go to last post
  16. Cannot seem to get AE/PE right

    Started by sntrym95, 12-20-2023
    • Replies: 12
    • Views: 786
    12-23-2023 Go to last post
  17. MEFI4 passcode

    Started by Mykk, 12-20-2023
    • Replies: 0
    • Views: 257
    12-20-2023 Go to last post
  18. 2005 Silverado PCM

    Started by fish2222, 12-16-2023
    • Replies: 2
    • Views: 429
    12-19-2023 Go to last post
    • Replies: 9
    • Views: 2,944
    12-13-2023 Go to last post

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