Holley HP efi issue

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Apr 14, 2017 | 08:57 PM

jasonsnova

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Holley HP efi issue

So about 2 weeks ago I fired up my lq4 turbo holley my hp efi set up in my nova. It went perfect everything worked did self tune of idle and was actually running pretty decent. Well I had to do a gear swap and finish assembling grill and bumpers etc ( I did u hook battery at one point for a few min)...so i did that last few weeks. Got my rear end back and assembled and went to fire it up and nothing cranks that's it. Fuel pump doesn't come on , check all repays and fuses. Check main power and ignition power all good. So then I went and got lap top and no communication with ecm. Then I noticed a noise coming from engine bay.....checked and all the coils were firing with key on (obviously not running ) and my single led in dash that was hooked to a output on Ecm is dimly blinking to the tune of the coils.....any one ever here of anything like this? What really stumps me is everything thing....I mean every sensor was working and reading perfect when I shut it off and car never moved from the lift.
I'm gonna call holley tomorrow but I got a bad Feeling ecm is f- up.

Apr 14, 2017 | 09:27 PM

LSX Power Tuning

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From: Brenham TX

Every time we have seen that happen where we had one running and then lost the fuel output it ended up being the ecm. We backed one on the Dyno one day and strapped it down and went to start it up and the fuel pump wild the cut back on, was the ecm. We tune and sell and a lot of hollley, and have seen it a couple times.

Apr 14, 2017 | 09:45 PM