Page 1 of 101 1231151 ... LastLast
Threads 1 to 25 of 2523

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: 17,213
    10-12-2010, 04:57 PM Go to last post
    • Replies: 0
    • Views: 18,139
    07-12-2010, 04:14 PM Go to last post
  1. Slow sync with sequential EFI question.

    Started by monaroman, 07-19-2017 12:41 AM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,145
    Today, 04:19 PM Go to last post
  2. Can't View Datalog

    Started by another69, Today 03:50 PM
    • Replies: 1
    • Views: 4
    Today, 04:10 PM Go to last post
  3. Injector End Angle Tuning

    Started by 81 TransAm, 09-15-2017 10:01 PM
    11 Pages
    1 2 3 ... 11
    • Replies: 105
    • Views: 25,071
    Yesterday, 10:30 PM Go to last post
  4. No Start

    Started by 3DTim, 06-30-2020 08:45 PM
    • Replies: 8
    • Views: 111
    Yesterday, 11:26 AM Go to last post
  5. Rev Limiter & Line Lock with stick car.

    Started by jb427, 06-26-2020 04:15 PM
    • Replies: 2
    • Views: 115
    Yesterday, 01:03 AM Go to last post
  6. ECU Failure

    Started by Mike E, 07-01-2020 11:16 PM
    • Replies: 3
    • Views: 37
    Yesterday, 12:15 AM Go to last post
  7. Seasonal Idle Fine Tuning

    Started by Qwktrip, 02-28-2020 01:47 AM
    7 Pages
    1 2 3 ... 7
    • Replies: 62
    • Views: 4,210
    07-01-2020, 11:48 PM Go to last post
  8. Can't connect USB, no communication.

    Started by Ken Rainwater, 06-29-2020 08:34 AM
    2 Pages
    1 2
    • Replies: 12
    • Views: 154
    07-01-2020, 10:57 AM Go to last post
  9. Smile Spark table for my Ford '69 HP EFI engine.

    Started by MUST.SWEDE, 06-18-2020 12:47 PM
    3 Pages
    1 2 3
    • Replies: 25
    • Views: 781
    06-30-2020, 05:20 PM Go to last post
  10. Fine tuning idle using a datalog.

    Started by Laveyman, 06-29-2020 02:43 PM
    2 Pages
    1 2
    • Replies: 12
    • Views: 149
    06-30-2020, 02:58 PM Go to last post
  11. Diode Wiring

    Started by jb427, 06-29-2020 01:43 PM
    • Replies: 4
    • Views: 69
    06-29-2020, 07:23 PM Go to last post
  12. "Get From ECU" now no fuel pump prime.

    Started by Laveyman, 06-21-2020 11:29 AM
    2 Pages
    1 2
    • Replies: 10
    • Views: 217
    06-29-2020, 12:45 PM Go to last post
  13. Tach doesn't read properly above 3500.

    Started by LB9GTA, 06-29-2020 08:51 AM
    • Replies: 2
    • Views: 43
    06-29-2020, 11:45 AM Go to last post
  14. Multi-Port Sequential Coil-On-Plug

    Started by diehrd, 06-16-2020 07:16 AM
    2 Pages
    1 2
    • Replies: 12
    • Views: 380
    06-29-2020, 10:40 AM Go to last post
  15. Initial Startup Problem

    Started by ScottChab, 06-28-2020 09:44 PM
    • Replies: 2
    • Views: 64
    06-29-2020, 09:16 AM Go to last post
  16. Post Holley 870021 Questions

    Started by graderbird2004, 06-29-2020 05:46 AM
    map, tech service, tech support
    • Replies: 0
    • Views: 34
    06-29-2020, 05:46 AM Go to last post
  17. 554-115 Peak & Hold Driver

    Started by Corvus Camaro, 06-27-2020 03:09 PM
    • Replies: 0
    • Views: 65
    06-27-2020, 03:09 PM Go to last post
  18. Frustrating Intermittent Misfire

    Started by alan91z28, 06-10-2020 07:31 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 36
    • Views: 689
    06-26-2020, 01:59 PM Go to last post
  19. Hard surging shortly after fan turns on.

    Started by hofdoug, 06-19-2020 11:14 AM
    2 Pages
    1 2
    • Replies: 11
    • Views: 255
    06-25-2020, 02:56 PM Go to last post
  20. Unhappy Injectors won't spray.

    Started by rileycory795, 06-25-2020 12:59 PM
    • Replies: 2
    • Views: 58
    06-25-2020, 01:38 PM Go to last post
  21. HP EFI Fan Outputs

    Started by monaroman, 08-07-2015 10:21 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 34
    • Views: 13,955
    06-25-2020, 12:51 PM Go to last post
  22. Arrow RPM problem with the cooling conditioner.

    Started by naif, 06-25-2020 08:41 AM
    • Replies: 0
    • Views: 41
    06-25-2020, 08:41 AM Go to last post
  23. Unhappy Update Firmware

    Started by naif, 06-22-2020 07:07 AM
    • Replies: 2
    • Views: 123
    06-25-2020, 08:27 AM Go to last post
  24. Dual Sync Distributor

    Started by rileycory795, 06-24-2020 01:47 PM
    • Replies: 1
    • Views: 61
    06-24-2020, 02:06 PM Go to last post
  25. Losing fuel pressure with RPM.

    Started by 1320 Bowtie, 06-23-2020 08:26 PM
    • Replies: 3
    • Views: 97
    06-24-2020, 11:30 AM Go to last post

Page 1 of 101 1231151 ... 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