Please be aware that this is a community forum. This is a great time to visually inspect the overall Sniper EFI install. 2 block, Eagle 3. After fighting it for a while I simply save the file, close the program, then reopen it and load the saved file. I'm using Holley distributor. (8-cylinder COP/CNP uses all eight. I created a quick Base Timing Table for you that … Ran on self learning for a couple of runs, downloaded these onto the MicroSD then tuning using a computer and Holley's program. I've … Using the Holley Sniper EFI software (LINK), look at where the live cursor moves to during this occurrence, and manually tune that area of the Base Fuel Table (enrich or lean) & … Holley EFI Troubleshooting: A 3% Error Caused THIS! Want to Learn How To TUNE Holley Efi, Terminator X, and Sniper? more You don't have enough timing at idle at about 13° and the Sniper only reads down to 20 kPa, so the lower portion won't be used. Can't seem to figure out now, why the car cranks, but won't fire! Someone help! Thank you The starter will reliably turn the engine over, but it won't reliably begin to run on its own and try to idle. Jump to Latest 10K views 20 replies 9 participants last post by Dave69Z … Using the Holley Sniper EFI software (LINK), look at where the live cursor moves to during this occurrence, and manually tune that area of the Base Fuel Table (enrich … Car won't start or won't respond to changes. Holley Tech … I called holley tech and they about suck as they said they don't know why its doing this and asked if I went to a smaller shooter and I said how would that help as its a lean … I'm having a warm start issue. Posts Latest Activity Photos Search Page of 5 Filter GPatrick Senior Member Join Date:Dec 2018 Posts:2733 Share Tweet … 1 رمضان 1443 بعد الهجرة 1 ربيع الآخر 1446 بعد الهجرة 22 شوال 1443 بعد الهجرة 21 ذو القعدة 1444 بعد الهجرة 28 شعبان 1445 بعد الهجرة 29 محرم 1440 بعد الهجرة 17 ربيع الآخر 1446 بعد الهجرة 17 ربيع الآخر 1446 بعد الهجرة 21 جمادى الآخرة 1440 بعد الهجرة 25 ذو القعدة 1446 بعد الهجرة 25 جمادى الأولى 1441 بعد الهجرة 2 شوال 1446 بعد الهجرة 2 رجب 1441 بعد الهجرة 8 ربيع الأول 1442 بعد الهجرة 16 جمادى الآخرة 1444 بعد الهجرة 16 ذو القعدة 1445 بعد الهجرة 4 صفر 1435 بعد الهجرة '67 Mustang 351W Holley Sniper first run. after testing, we will laser etch the corresponding customer number, engine displacement, date, and my signature. The AFR's just start going lean and the motor … Ive been running a Holley Sniper for a about four years now. I installed a new Sniper EFI unit in my 1990 Grand Wagoneer last weekend, and … '92 Ford Mustang GT: 385"/6. I don't know a lot about the datalogging yet, but I've attached a zip with the only three datalogs I managed … The car will start fine but only run for about 10-12 seconds before it dies. This v If you have a Holley EFI Terminator X or Sniper fuel injection that is running bad, here is a quick fix you can try. (what were the odds) Now got the new starter in place, time to try: … 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' This morning i go to start my truck and it turns over but wont start. Handle idle surges, no-start issues, and sensor faults with proven methods. But warm starts just give me a "cough" then keep spinning without any firing like it's flooded. - Holley Performance Products Forums Home Forum Holley EFI Sniper EFI 5 صفر 1447 بعد الهجرة New Super Sniper, HyperSpark, CDI & Coil. I've further read you could ground the … The Holley tech suggested I check fuel pressure to make sure I don't have a regulator or fuel pump issue. It seemed to start to run if I goosed the throttle while cranking, but it's … So after weeks waiting got my fuel hoses and starter broke the moment I wanted start the sniper for first time. The ignition switch must have a wire that's powered in "run" and "crank" … Engine dynoed at 809HP on 93 pump gas. At this point do not be concerned if it doesn't continue running … I'm trying to start a freshly rebuilt SBC. ) Using your multimeter, check for a … That way, the customer won't have a problem when they first fires up. The car was previously running, but I had to pull the engine to do some repairs. I created a quick Base Timing Table for you that … Recently put the Sniper Stealth 4500 on with the Dual Sync distributor and Sniper CDI box. Posts Latest Activity Photos Search Page of 5 Filter GPatrick Senior Member Join Date:Dec 2018 Posts:2812 Share Tweet … 7 جمادى الأولى 1446 بعد الهجرة 24 رجب 1445 بعد الهجرة New Super Sniper, HyperSpark, CDI & Coil. I've loosened the … I've installed a Sniper EFI with the Holley Dual Sync Distributor and an MSD 6EFI Ignition. Using the Holley Sniper EFI software … You don't have enough timing at idle at about 13° and the Sniper only reads down to 20 kPa, so the lower portion won't be used. com. Video attached. Doesn't matter if at idle or held at 3000 rpm Same thing. In the last year I have been struggling to fix a consistent hesitation I get … HELP with Holley Sniper system. You may have a misifiring injector. … Then the Sniper is back to normal and starts and fires and runs great. I've literally been fighting to make this run for 6 weeks - and finally taking it to a chassis … Holley Sniper Injector Problems- How to fix themAre you experiencing rough idle, slugish performance, lack of power. And OEM in-tank fuel pump. I relocated the ignition coil and later I replace the ign My equipment is a Sniper with Holley Dual Sync distributor and Holley coil (purchased kit all at same time so "stuff" matched up). The ignition switch must have a wire that's powered in "run" and "crank" … This morning i go to start my truck and it turns over but wont start. . Where should I start looking or … Using the Holley Sniper EFI software (LINK), look at where the live cursor moves to during this occurrence, and manually tune that area of the Base Fuel Table (enrich or lean) & … When the engine is tuned & running well, you should decrease the Closed Loop & Learned Compensation Limits % to lock in a good tune. Holley EFI Won't Go Into Closed Loop Or Learn?! Goat Rope Garage 126K subscribers Subscribe This summer after sitting for extended periods of time, car wouldn't start unless I'd pump the accelerator pedal. I’ve also replaced my alternator due to not charging well at idle. It will occasionally backfire through the carb. A couple With the Sniper, the more common issue if voltage drop at startup, but there are also potential voltage spikes that could cause the Sniper to reset. I can get the car to start pumping it like a carb and it will stay running if I hold my foot … Hey RCC! I'm looking for anyone with experience on a Holley Sniper 550. that …. Fires, but won't start. I’m using a Street Fire CD box, Sniper coil, the Holley in-tank pump. 6V at idle and stable during operation. holley. Now the problem. Suggestions? The car runs amazing with the Sniper when started cold and driving. After a couple tries it backfires through the carb (Holley sniper efi). That way, the customer won't have a problem when they first fires up. Start by consulting the … 1 رمضان 1443 بعد الهجرة 16 ذو الحجة 1445 بعد الهجرة 4 صفر 1435 بعد الهجرة 30 شعبان 1444 بعد الهجرة 7 ذو القعدة 1446 بعد الهجرة 7 جمادى الأولى 1446 بعد الهجرة 29 ذو القعدة 1446 بعد الهجرة 29 ربيع الآخر 1445 بعد الهجرة New Super Sniper, HyperSpark, CDI & Coil. that … I’ve installed the Sniper. be/inojghLt6Ho I have read almost every single thread on ih8mud about the Holley Sniper Install. For example, your current … By repeating this 3 or 4 times, you can narrow down your priming fuel % to where the engine will fire immediately. Many EMI/RFI issues will cause a reset of the Sniper computer and I didn't see that in your datalog, it … Dual post battery, all dirty power to top posts, Sniper running off side posts. If the issue still … So, I remove my Quickfuel 880cfm and Mopar electronic distributor and coil from my 69 Barracuda with mild 440 and install the … The Sniper is wired correctly also as I have the +12V pink wire going to a location where it constantly gets power and the start & run key position. Your MAT shows about 75°F and the coolant 90°F. Verify … Troubleshooting the Holley Sniper EFI involves checking for common issues like wiring, fuel pressure, and software settings. If that doesn't … To fire the relay you need 12 volts and ground. A couple I'm running the Holley Dominator EFI on an LS based engine. Just doesn't run well. The relay won't work if both the blue wire and the pink wire are 12 volts, so the blue wire has to be ground. … You can try running without an air cleaner to see if it still stalls. 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. Cold starts are pretty reliable. As … Holley's 8-cylinder DIS only uses four of the eight ECU triggers (waste-fire); B21 is always for #1. Although Holley employees … I was having issues with EMI and data dropouts causing backfires and computer resets while running. I put the engine in this … To start viewing messages, select the forum that you want to visit from the selection below. It'll pop and snort but won't run. If the engine does not start please use the flow chart in the Sniper EFI Troubleshooting Guide on www. It's wired as shown in the attached diagram (checked about ten times with multiple … So, I remove my Quickfuel 880cfm and Mopar electronic distributor and coil from my 69 Barracuda with mild 440 and install the … Yes, ensure the Sniper EFI switched +12V pink wire is powered in the "Run" and "Crank" key positions. When I turn the … I even shared the datalog with one of the Holley techs and they said everything seemed to be responding as expected and they noticed no signs of RFI. Before I call Holley tech support tomorrow, I thought I'd reach … The engine should fire and run and come to an idle. 3L SBF, Dart SHP 8. Battery is brand new, Battery voltage is 14. https://youtu. Car will run and drive just fine after it's started, but once I shut it off, it wont start again unless I feather the accelerator with my foot and take the TPS to about 1-2%. This is typical indication of a faulty Holley coolant temperature sensor. Fuel pressure at 60 psi sitting, cranking/running just under 60 psi. This won't prevent a startup, but will affect your high … Yes, ensure the Sniper EFI switched +12V pink wire is powered in the "Run" and "Crank" key positions. 29 ذو القعدة 1443 بعد الهجرة 13 ذو القعدة 1446 بعد الهجرة 23 ربيع الآخر 1444 بعد الهجرة 29 ذو القعدة 1446 بعد الهجرة 7 جمادى الأولى 1446 بعد الهجرة Before starting the engine, double check for leaks, proper wire routing, any wiring hazards or loose nuts and bolts. Engine starts then stall. 470" forged steel crankshaft & H-beam rods, Wiseco 4. Time to go back to basics and recheck everything starting with the firing order, cam timing and ignition timing. 200" forged pistons, Trick Flow Twisted Wedge 11R … Get reliable Holley Sniper EFI Troubleshooting advice. All you have to do is check for loose injector plugs. I did this yesterday and get a steady 60 psi at the fuel inlet to the … Curious if any of you have experience not getting power from the Sniper relay to the fuel pump. When I go to restart the car after sitting for a few minutes, 9 out of 10x it won't start. … Sniper EFI Idle Setting/Throttle Blade Setting (Holley Sniper EFI Quick Start Manual): Once the engine is up to operating temperature, the idle speed can be set to what … In any case it isn't a Sniper issue it's a "bad mechanic" issue.
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