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Forum: HP EFI

HP EFI Tuning & Tech

  1. Sticky Thread Sticky: HP Potential RPM Input Problem

    Started by Doug F, 10-12-2010 04:57 PM
    • Replies: 0
    • Views: 21,507
    10-12-2010, 04:57 PM Go to last post
    • Replies: 0
    • Views: 22,529
    07-12-2010, 04:14 PM Go to last post
  1. Injector End Angle Tuning

    Started by 81 TransAm, 09-15-2017 10:01 PM
    12 Pages
    1 2 3 ... 12
    • Replies: 110
    • Views: 37,414
    Today, 12:48 AM Go to last post
  2. Nitrous Momentary Switch?

    Started by sx455, Yesterday 11:34 AM
    • Replies: 3
    • Views: 43
    Yesterday, 02:23 PM Go to last post
  3. 351W Throttle Position Sensor

    Started by Donski, 02-18-2021 04:16 PM
    • Replies: 5
    • Views: 507
    Yesterday, 02:33 AM Go to last post
  4. Loss of fuel signal to relay?

    Started by Foxbody363, 03-05-2021 05:56 PM
    • Replies: 0
    • Views: 108
    03-05-2021, 05:56 PM Go to last post
  5. Still no driveshaft sensor.

    Started by turbofreak, 03-03-2021 07:41 PM
    • Replies: 9
    • Views: 290
    03-04-2021, 06:17 PM Go to last post
  6. Let me help you with Injector End Angle.

    Started by allan5oh, 07-06-2018 11:32 PM
    10 Pages
    1 2 3 ... 10
    • Replies: 97
    • Views: 19,605
    03-02-2021, 07:18 PM Go to last post
  7. Slow Sample Rate

    Started by BuaAuto, 01-30-2021 07:36 PM
    • Replies: 1
    • Views: 789
    03-02-2021, 02:48 PM Go to last post
    • Replies: 6
    • Views: 365
    03-02-2021, 01:51 PM Go to last post
  8. Problem reverting back to V5 update.

    Started by naif, 02-03-2021 01:38 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 1,465
    03-02-2021, 09:43 AM Go to last post
  9. Loss RPM sync during run, but still runs.

    Started by turbofreak, 07-23-2020 09:19 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,611
    02-27-2021, 01:03 PM Go to last post
  10. Sniper touchscreen with HP EFI?

    Started by 88 347 stroker, 02-18-2021 09:45 AM
    • Replies: 3
    • Views: 437
    02-26-2021, 08:50 AM Go to last post
  11. Datalog File Updates

    Started by Bluejinx202, 02-21-2021 11:21 PM
    • Replies: 0
    • Views: 351
    02-21-2021, 11:21 PM Go to last post
  12. HP Update Problems

    Started by mf6, 02-21-2021 05:26 AM
    • Replies: 0
    • Views: 388
    02-21-2021, 05:26 AM Go to last post
    • Replies: 3
    • Views: 462
    02-17-2021, 03:52 PM Go to last post
  13. Holley HP, no start.

    Started by 79Firebirddave, 02-14-2021 12:13 PM
    3 Pages
    1 2 3
    • Replies: 23
    • Views: 1,143
    02-16-2021, 06:40 PM Go to last post
  14. All in one test stand harness.

    Started by hotrodg726, 02-16-2021 12:43 AM
    • Replies: 0
    • Views: 430
    02-16-2021, 12:43 AM Go to last post
  15. Ignition Firing?

    Started by masheim, 02-14-2021 06:06 PM
    • Replies: 7
    • Views: 670
    02-15-2021, 02:01 PM Go to last post
  16. Possible to share HP EFI TPS signal wire with Trans Controller?

    Started by unnatrl, 06-17-2014 06:50 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 10,341
    02-09-2021, 01:32 PM Go to last post
  17. Coyote swap install and first start questions.

    Started by lwarrior1016, 07-21-2020 02:22 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,423
    02-06-2021, 08:27 PM Go to last post
  18. Fuel Learn not working.

    Started by Pro318f, 01-09-2021 07:19 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,585
    02-06-2021, 12:32 PM Go to last post
  19. Smart Coil Melted

    Started by Rick Cole, 08-29-2020 03:41 PM
    • Replies: 5
    • Views: 1,471
    02-03-2021, 10:14 AM Go to last post
  20. T56 drop-in Hall-Effect speed sensor.

    Started by Qwktrip, 01-29-2021 03:57 PM
    2 Pages
    1 2
    • Replies: 11
    • Views: 1,310
    02-02-2021, 12:22 PM Go to last post
  21. Injector Wiring Diagram

    Started by Ten Bears, 01-26-2021 04:50 PM
    • Replies: 3
    • Views: 980
    01-31-2021, 07:10 AM Go to last post
  22. New to Holley HP EFI/Pontiac 535

    Started by nmoreilly, 01-27-2021 06:59 PM
    • Replies: 5
    • Views: 1,057
    01-29-2021, 10:22 AM Go to last post
  23. Holley HP vs Terminator X

    Started by thatsupnow, 01-14-2021 09:39 PM
    2 Pages
    1 2
    • Replies: 10
    • Views: 1,756
    01-24-2021, 11:03 AM Go to last post

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