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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: 12,752
    10-12-2010, 04:57 PM Go to last post
    • Replies: 0
    • Views: 13,413
    07-12-2010, 04:14 PM Go to last post
  1. Holley HP not communicating.

    Started by Awesome-O, 05-20-2018 11:52 AM
    • Replies: 9
    • Views: 390
    05-20-2018, 11:58 PM Go to last post
    • Replies: 3
    • Views: 306
    05-20-2018, 01:25 AM Go to last post
  2. AFR not reading correctly.

    Started by Scotty, 05-13-2018 07:49 PM
    • Replies: 3
    • Views: 294
    05-18-2018, 03:17 PM Go to last post
  3. GM 12580681 L92 Injector Off Times?

    Started by The_Dickens, 05-18-2018 02:31 PM
    • Replies: 0
    • Views: 144
    05-18-2018, 02:31 PM Go to last post
    • Replies: 1
    • Views: 270
    05-18-2018, 12:10 AM Go to last post
  4. Fuel prime, fans, etc., delayed.

    Started by BLUE66, 05-14-2018 10:31 PM
    • Replies: 6
    • Views: 444
    05-17-2018, 06:04 PM Go to last post
  5. Wideband O2 Sensor Position

    Started by Larry R, 05-17-2018 01:21 PM
    • Replies: 3
    • Views: 225
    05-17-2018, 02:53 PM Go to last post
  6. Decel Fuel Cutoff

    Started by George F, 05-15-2018 08:18 PM
    • Replies: 3
    • Views: 369
    05-16-2018, 04:56 AM Go to last post
  7. Post Started three times, won't start again.

    Started by paddyrk, 05-14-2018 07:46 PM
    • Replies: 1
    • Views: 246
    05-14-2018, 10:06 PM Go to last post
  8. 6.0 LS Runs Rich

    Started by echas9, 05-13-2018 10:16 PM
    • Replies: 4
    • Views: 349
    05-14-2018, 07:53 AM Go to last post
  9. Digital Dash WITH Holley EFI Analog Gauges

    Started by droopie85gt, 05-05-2018 03:14 PM
    • Replies: 2
    • Views: 336
    05-13-2018, 10:07 PM Go to last post
  10. Digital Dash Doesn't Recognize ECU

    Started by SSSTANG, 09-13-2015 09:11 AM
    2 Pages
    1 2
    • Replies: 13
    • Views: 3,752
    05-12-2018, 04:47 PM Go to last post
  11. How to wire progressive nitrous on Holley HP?

    Started by Loosews6, 04-01-2015 09:01 PM
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 5,626
    05-11-2018, 06:29 AM Go to last post
  12. Terminator TBI to MPFI Upgrade

    Started by 442SCOTTY, 05-09-2018 02:09 PM
    • Replies: 2
    • Views: 252
    05-09-2018, 03:45 PM Go to last post
  13. Boost PSIG

    Started by George F, 05-07-2018 04:55 PM
    • Replies: 5
    • Views: 362
    05-08-2018, 10:35 AM Go to last post
  14. Switching to CNP using LSx coils.

    Started by robertc68, 04-11-2018 12:26 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,111
    05-06-2018, 03:28 PM Go to last post
  15. Need Timing Help

    Started by itkix, 05-05-2018 05:31 AM
    • Replies: 7
    • Views: 436
    05-05-2018, 06:00 PM Go to last post
  16. MAP in datalog?

    Started by George F, 05-05-2018 07:29 AM
    • Replies: 1
    • Views: 235
    05-05-2018, 08:56 AM Go to last post
  17. E85 Switch Success!

    Started by Tim M, 03-12-2017 01:04 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 3,920
    05-04-2018, 09:03 PM Go to last post
  18. Transfer Learning To Base

    Started by George F, 05-03-2018 06:54 PM
    • Replies: 3
    • Views: 386
    05-03-2018, 11:55 PM Go to last post
  19. Questions using HP EFI as piggyback.

    Started by TraviZ28, 04-24-2018 10:46 PM
    2 Pages
    1 2
    • Replies: 10
    • Views: 904
    05-03-2018, 12:40 PM Go to last post
  20. Red face Need HP WBO2 sensor extension cable?

    Started by Ebdb, 05-02-2018 09:31 PM
    • Replies: 3
    • Views: 274
    05-03-2018, 12:20 PM Go to last post
  21. AFR Sudden Drop

    Started by 1964fairlane, 04-25-2018 07:16 AM
    o2 oxygen sensor
    • Replies: 9
    • Views: 674
    05-02-2018, 07:09 PM Go to last post
  22. Right vs Left Bank WBO2 Sensor Install

    Started by Rage, 05-02-2018 10:19 AM
    • Replies: 1
    • Views: 295
    05-02-2018, 10:21 AM Go to last post
  23. V4 Firmware Install

    Started by Rage, 04-19-2018 10:26 AM
    • Replies: 4
    • Views: 581
    05-02-2018, 10:10 AM Go to last post

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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.
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