Page 1 of 109 1231151101 ... LastLast
Threads 1 to 25 of 2702

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: 21,483
    10-12-2010, 04:57 PM Go to last post
    • Replies: 0
    • Views: 22,511
    07-12-2010, 04:14 PM Go to last post
  1. 351W Throttle Position Sensor

    Started by Donski, 02-18-2021 04:16 PM
    • Replies: 5
    • Views: 475
    Today, 02:33 AM Go to last post
  2. Injector End Angle Tuning

    Started by 81 TransAm, 09-15-2017 10:01 PM
    11 Pages
    1 2 3 ... 11
    • Replies: 109
    • Views: 37,343
    Yesterday, 04:40 PM Go to last post
  3. Loss of fuel signal to relay?

    Started by Foxbody363, 03-05-2021 05:56 PM
    • Replies: 0
    • Views: 87
    03-05-2021, 05:56 PM Go to last post
  4. Still no driveshaft sensor.

    Started by turbofreak, 03-03-2021 07:41 PM
    • Replies: 9
    • Views: 260
    03-04-2021, 06:17 PM Go to last post
  5. 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: 19,565
    03-02-2021, 07:18 PM Go to last post
  6. Slow Sample Rate

    Started by BuaAuto, 01-30-2021 07:36 PM
    • Replies: 1
    • Views: 772
    03-02-2021, 02:48 PM Go to last post
    • Replies: 6
    • Views: 348
    03-02-2021, 01:51 PM Go to last post
  7. Problem reverting back to V5 update.

    Started by naif, 02-03-2021 01:38 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 1,436
    03-02-2021, 09:43 AM Go to last post
  8. Loss RPM sync during run, but still runs.

    Started by turbofreak, 07-23-2020 09:19 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,588
    02-27-2021, 01:03 PM Go to last post
  9. Sniper touchscreen with HP EFI?

    Started by 88 347 stroker, 02-18-2021 09:45 AM
    • Replies: 3
    • Views: 424
    02-26-2021, 08:50 AM Go to last post
  10. Datalog File Updates

    Started by Bluejinx202, 02-21-2021 11:21 PM
    • Replies: 0
    • Views: 327
    02-21-2021, 11:21 PM Go to last post
  11. HP Update Problems

    Started by mf6, 02-21-2021 05:26 AM
    • Replies: 0
    • Views: 374
    02-21-2021, 05:26 AM Go to last post
    • Replies: 3
    • Views: 442
    02-17-2021, 03:52 PM Go to last post
  12. Holley HP, no start.

    Started by 79Firebirddave, 02-14-2021 12:13 PM
    3 Pages
    1 2 3
    • Replies: 23
    • Views: 1,125
    02-16-2021, 06:40 PM Go to last post
  13. All in one test stand harness.

    Started by hotrodg726, 02-16-2021 12:43 AM
    • Replies: 0
    • Views: 417
    02-16-2021, 12:43 AM Go to last post
  14. Ignition Firing?

    Started by masheim, 02-14-2021 06:06 PM
    • Replies: 7
    • Views: 658
    02-15-2021, 02:01 PM Go to last post
  15. 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: 10,325
    02-09-2021, 01:32 PM Go to last post
  16. Coyote swap install and first start questions.

    Started by lwarrior1016, 07-21-2020 02:22 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,403
    02-06-2021, 08:27 PM Go to last post
  17. Fuel Learn not working.

    Started by Pro318f, 01-09-2021 07:19 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,570
    02-06-2021, 12:32 PM Go to last post
  18. Smart Coil Melted

    Started by Rick Cole, 08-29-2020 03:41 PM
    • Replies: 5
    • Views: 1,458
    02-03-2021, 10:14 AM Go to last post
  19. T56 drop-in Hall-Effect speed sensor.

    Started by Qwktrip, 01-29-2021 03:57 PM
    2 Pages
    1 2
    • Replies: 11
    • Views: 1,293
    02-02-2021, 12:22 PM Go to last post
  20. Injector Wiring Diagram

    Started by Ten Bears, 01-26-2021 04:50 PM
    • Replies: 3
    • Views: 966
    01-31-2021, 07:10 AM Go to last post
  21. New to Holley HP EFI/Pontiac 535

    Started by nmoreilly, 01-27-2021 06:59 PM
    • Replies: 5
    • Views: 1,050
    01-29-2021, 10:22 AM Go to last post
  22. Holley HP vs Terminator X

    Started by thatsupnow, 01-14-2021 09:39 PM
    2 Pages
    1 2
    • Replies: 10
    • Views: 1,740
    01-24-2021, 11:03 AM Go to last post
  23. Ford Injector Harness 558-209 Pin-Out

    Started by thatsupnow, 01-21-2021 07:09 PM
    • Replies: 1
    • Views: 858
    01-21-2021, 07:28 PM Go to last post

Page 1 of 109 1231151101 ... LastLast

Forum Information and Options

Moderators of this Forum

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 15 replies or 150 views
Hot thread with unread posts
More than 15 replies or 150 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us