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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: 12,738
    10-12-2010, 04:57 PM Go to last post
    • Replies: 0
    • Views: 13,389
    07-12-2010, 04:14 PM Go to last post
  1. Was running great, now stalling.

    Started by pjones, 08-09-2018 08:00 PM
    • Replies: 5
    • Views: 352
    10-12-2018, 01:46 PM Go to last post
  2. Characteristics of the 554-112 DIS module.

    Started by Scooty-T, 10-10-2018 10:39 PM
    • Replies: 3
    • Views: 143
    10-12-2018, 09:04 AM Go to last post
  3. Question Tune for exhaust pops, crackles & bangs.

    Started by paddyrk, 10-09-2018 03:33 PM
    • Replies: 3
    • Views: 244
    10-09-2018, 11:37 PM Go to last post
  4. V5 3.5" TSLCD won't update.

    Started by another69, 10-06-2018 01:26 PM
    2 Pages
    1 2
    • Replies: 12
    • Views: 369
    10-08-2018, 05:23 PM Go to last post
  5. No cam signal, running rough.

    Started by mattc231, 10-07-2018 05:58 PM
    • Replies: 2
    • Views: 112
    10-08-2018, 05:12 AM Go to last post
  6. Timing being pulled and I don't know why.

    Started by Qwktrip, 10-01-2018 10:45 PM
    3 Pages
    1 2 3
    • Replies: 25
    • Views: 674
    10-08-2018, 12:04 AM Go to last post
  7. GM Injector Harness Schematic

    Started by Radical2, 10-07-2018 02:52 PM
    • Replies: 2
    • Views: 121
    10-07-2018, 10:56 PM Go to last post
  8. Relay Type

    Started by hotrodg726, 10-07-2018 01:02 PM
    • Replies: 3
    • Views: 127
    10-07-2018, 01:28 PM Go to last post
  9. Increasing Boost

    Started by George F, 10-06-2018 10:19 PM
    • Replies: 2
    • Views: 165
    10-07-2018, 10:53 AM Go to last post
  10. Fuel pump pressure with 900 CFM TBI.

    Started by hutchenc, 10-03-2018 11:00 PM
    • Replies: 7
    • Views: 186
    10-04-2018, 11:55 PM Go to last post
  11. Auto Meter 5921

    Started by hotrodg726, 10-01-2018 08:48 PM
    • Replies: 5
    • Views: 141
    10-02-2018, 02:22 AM Go to last post
  12. Ram Jet MEFI 4 to HP EFI.

    Started by NailedElco, 09-27-2018 07:51 AM
    • Replies: 2
    • Views: 161
    10-01-2018, 08:32 PM Go to last post
  13. HyperSpark distributor with HP EFI?

    Started by Jay@HAP, 10-01-2018 10:59 AM
    • Replies: 1
    • Views: 98
    10-01-2018, 11:47 AM Go to last post
  14. Won't run, maybe coil/distributor or fuel?

    Started by scarron, 09-03-2018 04:54 AM
    • Replies: 8
    • Views: 297
    10-01-2018, 10:13 AM Go to last post
  15. 2-Step stops working intermittently.

    Started by Steve Marsa, 09-26-2018 02:44 PM
    • Replies: 2
    • Views: 142
    10-01-2018, 08:55 AM Go to last post
  16. Headers glowing red a few minutes after startup.

    Started by johnb423, 09-20-2018 09:25 PM
    • Replies: 7
    • Views: 414
    09-30-2018, 05:13 PM Go to last post
  17. D514 Coil Dwell

    Started by asheikh3, 09-30-2018 11:49 AM
    • Replies: 2
    • Views: 100
    09-30-2018, 12:18 PM Go to last post
  18. Dirt cheap traction control.

    Started by Qwktrip, 09-24-2018 10:25 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 542
    09-30-2018, 10:57 AM Go to last post
  19. DIS HP Mallory Dual Sync

    Started by Irocz2173, 06-18-2018 11:48 AM
    6 Pages
    1 2 3 ... 6
    • Replies: 59
    • Views: 2,313
    09-29-2018, 09:52 PM Go to last post
  20. Switching from Waste-Spark to CNP.

    Started by racindego, 07-14-2018 12:48 PM
    2 Pages
    1 2
    • Replies: 10
    • Views: 362
    09-29-2018, 08:23 PM Go to last post
  21. Exclamation Fuel Pressure Regulator Leak

    Started by paddyrk, 09-28-2018 11:50 PM
    fuel, leak, mustang, regulator
    • Replies: 1
    • Views: 109
    09-29-2018, 12:09 AM Go to last post
  22. No spark, no start.

    Started by DOUG62, 09-11-2018 10:15 PM
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 698
    09-28-2018, 03:56 PM Go to last post
  23. Idle Settings To Prevent Undershoot

    Started by Qwktrip, 04-07-2017 06:58 PM
    2 Pages
    1 2
    • Replies: 11
    • Views: 1,787
    09-28-2018, 03:03 PM Go to last post
  24. System Log Problems

    Started by srcracing, 09-28-2018 05:39 AM
    • Replies: 5
    • Views: 126
    09-28-2018, 12:06 PM Go to last post
  25. Reality Check

    Started by stacked33, 09-28-2018 11:34 AM
    • Replies: 1
    • Views: 122
    09-28-2018, 11:51 AM Go to last post

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