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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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    • Threads: 53
    • Posts: 268
    • Replies: 0
    • Views: 19,011
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  1. 4 cyl GM SFI ????

    Started by lgrant, 1 Day Ago
    • Replies: 5
    • Views: 74
    35 Minutes Ago Go to last post
  2. Sanity Check Cadillac 500 Tune

    Started by mihela, 10 Hours Ago
    • Replies: 2
    • Views: 36
    6 Hours Ago Go to last post
  3. Weird $OD Spark Advanced FIXED, sorta

    Started by dave w, 04-22-2018
    2 Pages
    1 2
    • Replies: 27
    • Views: 1,911
    1 Day Ago Go to last post
    • Replies: 1
    • Views: 70
    5 Days Ago Go to last post
  4. Starting to Learn on 95 G30 5.7 for Towing

    Started by donf, 06-20-2017
    6 Pages
    1 2 3 4 5 ... 6
    • Replies: 77
    • Views: 10,737
    5 Days Ago Go to last post
  5. new $EE tuning thing!

    Started by steveo, 10-05-2015
    71 Pages
    1 2 3 4 5 ... 71
    • Replies: 1,061
    • Views: 210,987
    5 Days Ago Go to last post
  6. wideband logging

    Started by steveo, 02-15-2014
    5 Pages
    1 2 3 4 5
    • Replies: 66
    • Views: 13,698
    1 Week Ago Go to last post
  7. What efi system is best for a 4.5 pfi cadillac engine7

    Started by S.O.B.B., 11-25-2017
    8 Pages
    1 2 3 4 5 ... 8
    • Replies: 108
    • Views: 10,221
    1 Week Ago Go to last post
  8. amc 304 conversion

    Started by mecanicus, 11-07-2018
    2 Pages
    1 2
    • Replies: 29
    • Views: 974
    1 Week Ago Go to last post
  9. Coolant sensor woes. '91 5.7 TBI

    Started by pma4x4, 1 Week Ago
    • Replies: 4
    • Views: 129
    1 Week Ago Go to last post
    • Replies: 5
    • Views: 248
    1 Week Ago Go to last post
  10. Getting owned by an 87 TBI

    Started by GetItBilly, 10-30-2018
    3 Pages
    1 2 3
    • Replies: 40
    • Views: 1,599
    1 Week Ago Go to last post
  11. 86 Vette with 94 LT1 Help NEEDED!!

    Started by ttbone72, 3 Weeks Ago
    • Replies: 5
    • Views: 264
    1 Week Ago Go to last post
  12. DIY LTCC or similar system for LT1s

    Started by Aroberson77, 09-08-2017
    28 Pages
    1 2 3 4 5 ... 28
    • Replies: 411
    • Views: 45,148
    1 Week Ago Go to last post
  13. 95 lt1 injector offset questions

    Started by Mr.owl, 4 Weeks Ago
    • Replies: 7
    • Views: 310
    2 Weeks Ago Go to last post
  14. TBI 3-wire O2 sensor question

    Started by Daveo91, 3 Weeks Ago
    • Replies: 10
    • Views: 323
    2 Weeks Ago Go to last post
  15. Injectors

    Started by Stroked 388, 3 Weeks Ago
    • Replies: 4
    • Views: 193
    2 Weeks Ago Go to last post
  16. $0d Manual Transmission rolling idle

    Started by leetmo, 2 Weeks Ago
    • Replies: 1
    • Views: 103
    2 Weeks Ago Go to last post
    • Replies: 72
    • Views: 3,665
    2 Weeks Ago Go to last post

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