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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: 11,859
    10-12-2010, 04:57 PM Go to last post
    • Replies: 0
    • Views: 12,572
    07-12-2010, 04:14 PM Go to last post
  1. Help with lean spikes while driving.

    Started by lonestang95, 08-12-2013 03:54 PM
    • Replies: 3
    • Views: 3,092
    08-13-2013, 03:11 AM Go to last post
  2. PSI/kPa Boost?

    Started by s/s, 08-09-2013 10:29 AM
    • Replies: 9
    • Views: 7,372
    08-12-2013, 02:04 AM Go to last post
  3. ECU Data Log not working

    Started by Red67, 08-09-2013 03:55 PM
    • Replies: 3
    • Views: 2,436
    08-10-2013, 01:59 AM Go to last post
  4. Backfiring when hot

    Started by Red67, 08-09-2013 04:10 PM
    • Replies: 2
    • Views: 1,777
    08-09-2013, 11:26 PM Go to last post
  5. WBO2 & Idle

    Started by conmax, 08-07-2013 03:26 PM
    • Replies: 2
    • Views: 2,558
    08-09-2013, 07:08 AM Go to last post
  6. Cheapest harness/HP ECU path?

    Started by 440roadrunner, 07-17-2013 06:45 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 6,796
    08-08-2013, 10:39 PM Go to last post
  7. ECU Date & Time

    Started by tthomp, 08-07-2013 01:11 PM
    • Replies: 3
    • Views: 1,834
    08-08-2013, 03:24 AM Go to last post
  8. HP EFI Questions

    Started by darbikrash, 08-04-2013 04:16 PM
    • Replies: 2
    • Views: 2,495
    08-05-2013, 10:00 AM Go to last post
  9. Idle Surging!

    Started by s/s, 06-27-2013 12:01 AM
    6 Pages
    1 2 3 ... 6
    • Replies: 53
    • Views: 23,786
    08-04-2013, 01:08 PM Go to last post
  10. IAT Sensor

    Started by 93notch, 07-28-2013 07:50 AM
    • Replies: 1
    • Views: 2,331
    07-28-2013, 08:27 AM Go to last post
  11. Possible Faulty O2 sensor?

    Started by drewsky121, 07-26-2013 05:50 PM
    faulty, iac, wideband
    • Replies: 3
    • Views: 3,523
    07-27-2013, 12:19 PM Go to last post
  12. GM TBI Distributor Tune

    Started by TJ555, 07-24-2013 10:57 AM
    • Replies: 3
    • Views: 1,862
    07-25-2013, 02:17 PM Go to last post
  13. No Start Condition...

    Started by 1badgoat, 07-08-2013 08:19 AM
    2 Pages
    1 2
    • Replies: 13
    • Views: 5,161
    07-23-2013, 08:14 AM Go to last post
  14. Engine Runs Rough In Closed Loop

    Started by Regal454, 07-13-2013 06:42 AM
    • Replies: 6
    • Views: 3,689
    07-13-2013, 08:50 AM Go to last post
  15. Engine miss over 3000 RPM?

    Started by Regal454, 05-21-2013 07:35 PM
    2 Pages
    1 2
    • Replies: 11
    • Views: 7,959
    07-13-2013, 07:57 AM Go to last post
  16. 12V RPM switch?

    Started by tubbedstangeater, 06-28-2013 08:34 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 7,252
    07-10-2013, 06:36 AM Go to last post
  17. HP EFI For New LS3 Crate Engine

    Started by foler, 07-04-2013 10:31 AM
    • Replies: 3
    • Views: 4,783
    07-04-2013, 05:51 PM Go to last post
  18. Hot Start Issues

    Started by tubbedstangeater, 05-10-2013 11:52 PM
    • Replies: 5
    • Views: 3,255
    06-25-2013, 09:07 AM Go to last post
  19. HP V1.x to V2.x differences

    Started by Phoenix-MN, 06-22-2013 04:02 PM
    • Replies: 3
    • Views: 2,451
    06-23-2013, 05:33 AM Go to last post
  20. Question about pressure transducer.

    Started by SuperDan, 06-21-2013 08:28 AM
    • Replies: 1
    • Views: 1,835
    06-21-2013, 09:19 AM Go to last post
  21. HP ECU with Nitrous

    Started by gregj2, 06-20-2013 12:28 AM
    • Replies: 3
    • Views: 4,804
    06-21-2013, 02:01 AM Go to last post
  22. LQ4 not starting, please help.

    Started by erik, 05-13-2013 10:05 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 8,755
    06-13-2013, 05:45 PM Go to last post
  23. Trouble starting new 4.5L Whipple SC install.

    Started by conmax, 05-22-2013 03:10 PM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 9,981
    06-09-2013, 12:29 PM Go to last post
  24. WBO2 Sensor Questions

    Started by rvander68, 06-08-2013 08:42 AM
    • Replies: 1
    • Views: 2,874
    06-08-2013, 10:10 PM Go to last post
  25. Reccomended in tank pump for 550-411 HP TBI

    Started by 78F100shortbed, 06-01-2013 09:08 PM
    • Replies: 1
    • Views: 2,276
    06-02-2013, 04:12 AM Go to last post

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