Holley Sniper Fires But Won T Run. Occasionally, it will start and idle very well for a few seco
Occasionally, it will start and idle very well for a few seconds, but then . Before starting the engine, double check for leaks, proper wire routing, any wiring hazards or loose nuts and bolts. I have a "Ready to Run" distributor. Start by consulting the Discover common Holley Sniper EFI Problems, troubleshooting tips, and fixes to optimize your EFI system's performance. Any other tips or advice to keep your Holley Sniper EFI system running smoothly? Regular maintenance is always important for Hello all. Hit the key the fuel pump comes on like Hey everyone,I’m pretty sure I’ve solved a couple of common problems with the Holley Sniper EFI system — especially issues that happen when things get hot un Holley Sniper won't idle and running very rough. Posts Latest Activity Photos Search Page of 5 Filter GPatrick Senior Member Join Date:Dec 2018 Posts:2812 Share Tweet Are your morning drives being ruined by a temperamental Holley Sniper EFI system? Those mysterious stalls, frustrating no-starts, New Super Sniper, HyperSpark, CDI & Coil. Having issues after installing: Sniper EFI, Sniper Hyperspark dizzy, Sniper ignition coil and box. At this point I'm suspecting something wrong with the vehicle harness, but I don't know what wiring issue Hey guys, having some trouble with a full holley install, got everything wired up, unused vacuum lines capped, ran new fuel and That fixed the issue, was a bad cpu. Once engine is started and closed loop is active, the AFR should Got the basic Sniper for my 68 340, with the OEM style fuel module sending unit/fuel pump from Holley. Posts Latest Activity Photos Search Page of 5 Filter GPatrick Senior Member Join Date:Dec 2018 Posts:3014 Share Tweet New Super Sniper, HyperSpark, CDI & Coil. Sniper Stealth 4150 ran great for a year, although we had a minor fuel delivery issue. Attached datalog. It'll pop and snort but won't run. Wondering if it's a bad WBO2 sensor or stuck injector. Basic troubleshooting steps Are your morning drives being ruined by a temperamental Holley Sniper EFI system? Those mysterious stalls, frustrating no-starts, But when the engine refuses to fire up as expected, that excitement can quickly become a hassle. We’ll explore the causes behind Found a singular high pressure fuel pump in Dillon Colorado and managed to limp home with that. - Holley Performance Products Forums Home Forum Holley EFI Sniper EFI The Snipers won’t squirt a prime shot and the engine won’t run. Without the engine running, AFR will read 35. Posts Latest Activity Photos Search Page of 5 Filter GPatrick Senior Member Join Date:Dec 2018 Posts:2733 Share Tweet New Super Sniper, HyperSpark, CDI & Coil. Troubleshooting the Holley Sniper EFI involves checking for common issues like wiring, fuel pressure, and software settings. Like it starts and the second I let go of the starter switch it I'm trying to start a freshly rebuilt SBC. The truck cranks and fires, but will not stay running. This is a great time to visually inspect the overall Sniper EFI install. New Super Sniper, HyperSpark, CDI & Coil. We installed a new fuel pump and added a fuel pressure gauge right at the I've installed a Holley Sniper with HyperSpark ignition. 6 AFR (Air Fuel Ratio). I've loosened the Engine won't start, cranks over fine, but won't fire when the engine is what I call hot (180°F) and heat sink has set in after sitting for 20 minutes or more. Cold (86°F and Warm Davin puts the Redline Rebuild Ford 289 on the engine dyno to find out if the Holley Sniper EFI is really an improvement over a standard four-barrel. It will occasionally backfire through the carb. Fires, but won't start. Also replaced old fuel lines with 3/8” Earls VaporGuard and If you're installing a Sniper EFI system and almost ready to crank it over for the first time, this is the video for you! Subscribe now to make sure you don' Holley sniper? When you mean won't run, how long does it run? What tach source are you using? No it’s a dominator. If it fires and runs you don’t have enough cranking voltage through the key circuit. Verify Common issues with Holley Sniper EFI include sensor errors, fuel delivery problems, and wiring issues. I had a similar issue, this cleared it up, so I just installed a push button (wired across the two Hey everyone, I’m pretty sure I’ve solved a couple of common problems with the Holley Sniper EFI system — especially issues that AFR (Oxygen Sensor) – Initially should show “Heating”.
