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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: 269
    • Replies: 12
    • Views: 1,657
    05-15-2017 Go to last post
  1. Individual Cylinder Trims Discussion

    Started by spfautsch, 05-08-2017
    2 Pages
    1 2
    • Replies: 19
    • Views: 807
    05-15-2017 Go to last post
    • Replies: 32
    • Views: 1,800
    05-14-2017 Go to last post
    • Replies: 11
    • Views: 752
    05-14-2017 Go to last post
  2. 5.7 vortec runs rich

    Started by dhworkin, 03-24-2017
    2 Pages
    1 2
    • Replies: 20
    • Views: 1,414
    05-14-2017 Go to last post
    • Replies: 8
    • Views: 363
    05-13-2017 Go to last post
  3. 7730 ecm 40 tooth tone ring

    Started by misterpat, 05-07-2017
    • Replies: 9
    • Views: 429
    05-12-2017 Go to last post
  4. 4L80E with 16168625 ECU, is this normal?

    Started by wanderingturtle, 07-11-2016
    2 Pages
    1 2
    • Replies: 27
    • Views: 3,335
    05-12-2017 Go to last post
  5. V8 Astro TBI

    Started by falconvan, 01-30-2016
    4 Pages
    1 2 3 4
    • Replies: 45
    • Views: 6,714
    05-11-2017 Go to last post
  6. Unusual amounts of knock at unusually low timing

    Started by Danspeed1, 04-05-2017
    2 Pages
    1 2
    • Replies: 20
    • Views: 1,004
    05-06-2017 Go to last post
    • Replies: 13
    • Views: 1,460
    05-05-2017 Go to last post
  7. 16147060 Help

    Started by Trip_Aces, 04-29-2017
    • Replies: 3
    • Views: 245
    05-04-2017 Go to last post
  8. First stab at adjusting fueling '95 LT1

    Started by Dirtybob, 10-18-2016
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,695
    05-04-2017 Go to last post
  9. Am I doing this right?

    Started by 7danny, 05-04-2017
    • Replies: 2
    • Views: 204
    05-04-2017 Go to last post
  10. 7747 HWY lean cruise behavior

    Started by babywag, 05-04-2017
    • Replies: 0
    • Views: 152
    05-04-2017 Go to last post
    • Replies: 13
    • Views: 661
    05-02-2017 Go to last post

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