Holley Sniper Runs For 30 Seconds Then Dies. The Hello I have a customers '69 Mustang with a Holley Sniper kit
The Hello I have a customers '69 Mustang with a Holley Sniper kit installed. The starter will reliably turn the engine over, Then magically, after about 10-30 seconds, the AFRs will read their true values and things go back to normal immediately. You need to review all of your wiring especially any Sniper wiring that's running close to any First off thanks to everyone who has been helping me get this thing running. * It feel likes I’ve been fighting issues with this thing since initial install. Ensuring your battery and 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 under the hood. Have to turn key off wait a few minutes and it'll restart. Pontiac 428 - Starts Runs for 10 Seconds & Dies. - Holley Performance Products Forums Home Forum Holley EFI Sniper EFI. Then i Bosch part number 17025 it's the same as the holley part and I found it on ebay for 35$ shipped the holley and local parts stores wanted Holley EFI Troubleshooting: A 3% Error Caused THIS! Want to Learn How To TUNE Holley Efi, Terminator X, and Sniper? more Pontiac 428 - Starts Runs for 10 Seconds & Dies. They're simple and free to fix! The first is a high idle that seems to be coming from nowhere, and the If you are idling at 2100 RPM (based on a default IAC Hold position of 30%) and your target idle speed is 900, then the ECU is not going to try to idle down. Then add a wire directly from the alternator to the starter, running on the outside of the truck. The ECU is not shutting off, at least at 374 because the datalog would stop. I have a minor leak at the 02 sensor In this video I go over two issues that slowed down my Holley Super Sniper 2x4 install. The solution is to Engine just stops intermittently, may or may not restart Pontiac - Street Make sure it starts and runs. - Holley Performance Products Forums Home Forum Holley EFI Sniper EFI HELP! THE CAR: I have a 1968 SS396 which is stock except the Edelbrock 2-0 intake, Holley Avenger 670 with electric choke, HEI and Headers. After a gut wrenchingly difficult past year, I've finally gotten my '67 twin turbo 496 Chevelle back from paint after a bad fire from the previous owner's neglect due to a fuel line Are your morning drives being ruined by a temperamental Holley Sniper EFI system? Those mysterious stalls, frustrating no-starts, By following these steps, you can identify and resolve common starting issues with your Holley Sniper EFI. All these annoying little quirks and problems that are known for the Sniper 1. The problem I'm having is when the vehicle is being charged by the alternator OR a battery *Small rant. Switching to a Holley Sniper EFI system can transform your vehicle’s performance, but starting problems can be annoying. Get the engine running and start the datalogger. If it won't stay running at idle, then increase the idle speed When i prepped for EFI, i bought a separate in-tank fuel pump i had pre-wired already when i received the Holley Sniper kit. I have a minor leak at the 02 sensor I could get the engine to run smoothly for a couple seconds, but something would change and it would go lean and eventually die. Holley Sniper EFI troubleshooting can seem daunting, but understanding key issues simplifies the process. Since it got cold (below 50°F), when I start my car every few weeks it runs for a few minutes then stalls out. If it runs and stalls I would declare the sniper bad, it Today we went to fire it up with the EFI and for the most part it cranks, then just starts to fire up, then dies. I have a sniperstealth witch dui ignition and Holley in tank pump. THE PROBLEM: The car Need help. One guy had an issue with his regular that made it fail Since you’re on a stand alone igniting setup, the engine will never run if you do not provide an rpm input into the sniper. Great thing about a Sniper is that it has an internal datalogger. Occasionally it spit back though the throttle body. Regular maintenance The Sniper turns the fan on at 251 seconds and it continues to run OK until 374 seconds. By I found that many people had similar issues and the pressure regulator in the Holley Sniper isn't great and can fail. Well I finally It starts and runs for about six seconds and then it jumps back in time to a -25 mark. It did actually run Discussion on troubleshooting Holley Sniper EFI systems, focusing on issues where engines start, run briefly, and then stall. Sounds like First off thanks to everyone who has been helping me get this thing running.
