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Threads 1 to 25 of 2264

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: 13,836
    10-12-2010, 04:57 PM Go to last post
    • Replies: 0
    • Views: 14,517
    07-12-2010, 04:14 PM Go to last post
  1. No Start

    Started by 5o2slow, 07-18-2019 08:20 PM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 361
    Today, 10:35 AM Go to last post
  2. WBO2 sensor help!

    Started by 1st32, Today 09:13 AM
    • Replies: 0
    • Views: 7
    Today, 09:13 AM Go to last post
  3. Instructions for 550-501?

    Started by Roland, Today 05:47 AM
    • Replies: 1
    • Views: 15
    Today, 06:47 AM Go to last post
    • Replies: 1
    • Views: 38
    Today, 04:13 AM Go to last post
  4. Question 554-112 Coil Driver Help

    Started by Jeep4.7, Yesterday 07:16 PM
    • Replies: 0
    • Views: 18
    Yesterday, 07:16 PM Go to last post
  5. Fuel Pressure

    Started by 5o2slow, 07-16-2019 06:33 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 280
    07-18-2019, 04:37 PM Go to last post
  6. 351W & Coil On Plug Ignition

    Started by mighty mouse, 10-05-2015 04:29 PM
    • Replies: 8
    • Views: 6,185
    07-18-2019, 02:51 PM Go to last post
    • Replies: 34
    • Views: 694
    07-16-2019, 03:26 PM Go to last post
  7. HP EFI V4 with two 3.5" TSLCDs connected?

    Started by 383_StealthRam, 07-15-2019 02:33 PM
    • Replies: 7
    • Views: 104
    07-16-2019, 11:43 AM Go to last post
  8. Should I download to ECU, or upload from?

    Started by ttocs, 07-13-2019 02:56 PM
    • Replies: 4
    • Views: 152
    07-15-2019, 06:38 AM Go to last post
  9. Gauge Selection

    Started by Pro318f, 07-13-2019 02:49 PM
    • Replies: 1
    • Views: 67
    07-13-2019, 03:37 PM Go to last post
  10. Injector End Angle Tuning

    Started by 81 TransAm, 09-15-2017 10:01 PM
    8 Pages
    1 2 3 ... 8
    • Replies: 70
    • Views: 10,815
    07-10-2019, 09:12 AM Go to last post
  11. Bad Holley Dual Sync Distributor Gen 1

    Started by Raymond73, 07-10-2019 02:44 AM
    • Replies: 0
    • Views: 68
    07-10-2019, 02:44 AM Go to last post
  12. Closed Loop delay after startup?

    Started by mgrant, 07-07-2019 10:05 AM
    • Replies: 8
    • Views: 252
    07-07-2019, 05:42 PM Go to last post
  13. Wiring factory ABS sensor into HP.

    Started by froman, 06-28-2019 03:20 PM
    • Replies: 3
    • Views: 136
    07-07-2019, 12:01 PM Go to last post
  14. TPS Sensor

    Started by ttocs, 07-06-2019 09:36 PM
    • Replies: 8
    • Views: 134
    07-07-2019, 08:52 AM Go to last post
  15. LS Coils E85 Nitrous

    Started by fishmasterdan, 06-17-2019 04:16 PM
    • Replies: 3
    • Views: 167
    07-06-2019, 06:16 PM Go to last post
  16. Online Training

    Started by fastmanefi, 10-24-2017 02:04 PM
    6 Pages
    1 2 3 ... 6
    • Replies: 59
    • Views: 11,479
    07-04-2019, 03:56 PM Go to last post
  17. Testing Boost Control With Shop Air

    Started by Five O, 02-28-2017 11:15 PM
    2 Pages
    1 2
    • Replies: 12
    • Views: 2,250
    07-02-2019, 02:29 PM Go to last post
  18. Loose Green Wire

    Started by 5o2slow, 06-30-2019 03:06 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 321
    07-02-2019, 08:55 AM Go to last post
  19. Quick question about datalogs.

    Started by 80malibuturbo, 06-28-2019 06:31 PM
    • Replies: 1
    • Views: 109
    06-28-2019, 11:32 PM Go to last post
  20. Timing Setup

    Started by diehrd, 06-27-2019 10:00 AM
    • Replies: 5
    • Views: 262
    06-28-2019, 08:25 AM Go to last post
  21. Throttle Blades Sticking

    Started by dblock, 06-25-2019 04:12 PM
    • Replies: 3
    • Views: 132
    06-27-2019, 04:43 PM Go to last post
  22. Fuel pump relay control voltage low.

    Started by wagonmaster, 06-17-2019 04:28 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 355
    06-27-2019, 01:52 PM Go to last post
  23. Which EFI software file to download?

    Started by 5o2slow, 06-26-2019 07:22 PM
    • Replies: 3
    • Views: 157
    06-27-2019, 08:34 AM Go to last post

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