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    1. #1
      Join Date
      Apr 2013
      Posts
      11
      Country Flag: United States

      Need to get educated on Holley HP EFI

      Hello! First off, I have reviewed several posts, but I am just not for sure what it is that I am looking for! So, here is what I have...
      LQ4
      L92 Heads
      TFS 30602003 Cam
      Truck Intake Manifold
      90mm Throttle Body
      Headers
      TKO 600
      Holley HP EFI
      Base tune was the 480hp LS2 off of the global



      If you need more specific info, let me know and I will get it.
      The problem... Will not idle after any kind of throttle. We can get it to idle well at 1050 RPM, starts easy and the throttle response is very good. Unfortunately, after any kind of acceleration/throttle it goes right by idle RPM and dies. I am not sure what I am chasing down...I have read so much about TPS, IAC and air/fuel ratio that my head is spinning! It's so close to being driveable, but I just don't know enough about the EFI/ECU/LSx world. Please let me know what info you need and thanks in advance for any help you can provide!
      Matt






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