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Old 09-25-2019, 08:30 PM
GWNashville's Avatar
GWNashville GWNashville is offline
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Join Date: Dec 28, 2016
Location: Nashville
Posts: 112
Re: Holley Sniper EFI

Hey Guys
I need a little help. I installed a EFI Sniper Hyperspark system and it runs great for about 25 minutes and then it cuts off like someone turned the key off. The fuel pressure is at 59 lbs, I have checked grounds three times. I talked to Holley they thought it might be the coil because it gets really hot. They sent a new one same result. Has anyone had this issue and if so what did you do to fix it. Greatly appreciated. Richard.
1989 Grand Wagoneer 360 c.i.
727 Transmission
Serehill Rear Glass and Fog Light Harness.
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Old 09-30-2019, 12:22 AM
acct21's Avatar
acct21 acct21 is offline
327 Rambler
Join Date: May 20, 2014
Location: Austin, TX
Posts: 723
Tell us a little more about your setup. Stock/OEM ignition, or the Holley CDI? What kind of fuel pump are you running (in-tank, frame mount, surge tank)?
1990 Grand Wagoneer with HD towing package -- everything works! (for now...)
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Old 09-30-2019, 11:29 AM
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babywag babywag is offline
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Join Date: Jun 08, 2005
Location: Land of froot loops and cukcoo-nuts, CA
Posts: 9,659
best bet is either holley tech support forum
or call them.
only a few folks using it here.

that said usually if it just shuts off it's electrical.
if it doesn't fire right back up likely bad component.
if it does fire right back up probably a bad connection somewhere.
since it's time/heat related odds say bad component.
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