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Common problems with holley sniper efi?
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Common problems with holley sniper efi?
Now it's to the point that it decides when it wants to work (if at all) even when I restart it. Holley EFI If this is your first visit,. There are a few tell-tale signs that can help you diagnose the problem. EFI fuel pumps have a wide range of psi capability; you set the exact pressure you need/want. RF Interference issues can absolutely ruin the Sniper EFI System owner's day. The problem from what I understand is Holley's products are not compatible with each other. If your mixture is too rich, it means there's too much fuel and not enough air. The kit is composed of a modular fuel pump hangar assembly, a fuel pump that can properly feed a fuel injected engine, and a Holley HydraMat fuel pickup system. Very new to the Sniper EFI in general stuff. Next, collect a datalog at idle when the engine is fully warm for about 15 seconds. I have a customer with a 1968 C10, very mild 454 with a QuadraJet intake and we were looking at the Sniper QuadraJet system. 03-20-2024, 10:10 AM. Get expert technical support for Holley Performance products, including EFI systems and fuel injection, on the official support page. My IAC seems to be hunting from 2%-12% roughly when idling at >= 180°F engine temperature. My Bronco with Holley Sniper EFI was running poorly. Jul 28, 2017 · - Fuel pressure has been verified at the Sniper EFI throttle body and is between 55 & 65 psi - All wiring has been tied away from potential hazards such as the exhaust, fans, pulleys, spark plug wires, 12 Volt accessory wires, the ignition coil and ignition coil wiring. I have an existing Sniper installation that will not start after sitting for a couple of weeks. 03-03-2024, 06:17 PM. In the last year I have been struggling to fix a consistent hesitation I get under acceleration after it warms up. This unique design of utilizing two plenums solves two common problems experienced. No Start. This is a common problem with the Sniper. This is a fresh install of a Sniper Stealth on a 355 SBC, non-timing controlled. '92 Ford Mustang GT: 385"/62 block, Eagle 3. Report back on an RPM signal. They could also hire an expert to help them harden the Sniper against RFI noise. 1. , ALL SOLVED! 05-24-2024, 09:47 AM. Tweet 11-19-2022, 11:56 AM. Holley says they re-designed Sniper 2 from the ground up. Jul 22, 2020 · At the top Toolbar, add the Boost ICF to your Config File (Toolbox, Add Individual Config). When the engine isn't responding to normal timing, the two most common issues are an incorrect timing mark, or the use of a timing light that does not work with a multiple spark ignition. You need to study RFI/EMI and understand transducer vs transmitter and how it relates to communication wiring. That allows the system to support between 800. Share #1. Truck is a Ford F100 with a 390 FE engine. Ensure the Target A/F Ratio table is properly programmed for your engine. Datalog 2 (no cutting out). Sniper 1, installed ran great then after a year or so started acting up. It runs great, however, periodically when the key is turned on, the fuel prime will not stop. A backfire can damage the Sniper, but it would be rare. Significant new changes means something is wrong. 08-28-2018, 04:33 PM. Connections show to be OK. The problem from what I understand is Holley's products are not compatible with each other. Nov 9, 2021 · I have a Holley Sniper EFI with HyperSpark ignition. Unplug it and immediately plug to the Holley sensor and back to 68°F. Minimum Voltage: +12V. A 100-micron filter is generally used as a pre-filter for electric fuel pumps, while 10-micron filters are used as a final filter for EFI engines because larger particles can clog fuel injectors. Distributor is timed correctly, and runs from 20°- 26. Fixed gasket and reset the Sniper all good again. If it won't cure the problem, it won't hurt anyway. Recently installed a holley sniper efi system on my 67 6cyl easy install and system setup with the handheld. Tweet Sniper 2300 IAC Hunting. Everything running great then massive issues. My EFI doesn't detect any RPM. The RPM range is common but the MAP scale difference is not unheard of but unusual. Originally Posted by Danny Cabral. Jul 28, 2017 · - Fuel pressure has been verified at the Sniper EFI throttle body and is between 55 & 65 psi - All wiring has been tied away from potential hazards such as the exhaust, fans, pulleys, spark plug wires, 12 Volt accessory wires, the ignition coil and ignition coil wiring. Step 2 - remove your air cleaner and have someone turn on the ignition. ) My 1% TPS bug analysis & thoughts. I've installed eight regular Sniper systems on customers vehicles with great success. Side-draft is more feasible than up-draft as we are injecting fuel before the butterflies in the throttle body. ) New Sniper ignition problems. I want to buy these----EFI super sniper or sniper 2, up to 650HP naturally asperated 550-519. Each time, the same results: Noise on the RPM signal that is creating havoc. The US Supreme Court today heard arguments about juvenile justice and uniquely harsh American punishments. The ECU was bad After about two months, I just got it back yesterday, dropped it back on, and made all of the connections, tried to start and no fire. Does anyone have the latest version of the Sniper 1 EFI firmware? And before you say, "It's on the website, go download it As of today, if you download the "Sniper EFI SD Card Contents" link for the support page for the Sniper EFI, you get firmware version fw_02_00_0310. O2 Sensor Mounting: The O2 needs to be mounted 6-8" after the merge in the header collector. Recently the tach signal became very erratic, so I investigated and found the pickup in the distributor had come loose and was grinding through the reluctor wheel. Pull the TV cable off the stud and see how the pedal feels (motor off) or not in drive. Sniper EFI sputter/misfire when hot. Stock 6 into 1 manifold with the sensor about 3-4 inches off the. I'm running a return style system that almost perfectly mimics the factory fueling system in a stock 80. Sniper 1 has other known issues, so they even tried borrowing another throttle body that's known to work and the same problem persists. Electric fuel pumps only produce volume, the fuel pressure regulator creates the desired pressure. I have a Blueprint 347 engine with Holley Sniper EFI and F5 gas pedal, throttle cable on the top hole position and I'm finding it a bit sensitive, almost like and on/off switch. Holley 2300 sniper efi fuel pump problems. Tweet 11-19-2022, 11:56 AM. Holley's Sniper EFI systems bring fuel injection to the masses with carburetor-replacement systems that are designed to have all the benefits of electronic fuel injection without breaking your bank. 03-09-2024, 09:22 PM. The distributor was loose. rose gold room ideas New Sniper EFI install, having issues with AFR spikes when up to operating temperatures. Problem not the Sniper, it had a intake manifold gasket leak. Timing: 12-15° initial (I was playing around), 42° total. Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. Tweet Holley Sniper RPM Signal. Also some O2 sensors seem to fail, causing the system to peg at 35:1 Air/Fuel Ratio. I ended up finding a failed injector causing 99% of my problems. Learn how to adjust your settings, check your sensors, and troubleshoot your system. Everything has been running incredible. Fuel was being delivered to the EFI but the fuel map suggested it wasn't getting enough fuel. Military snipers are highly trained sharpshooters that can hit a target from great distances. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. ) The Holley Dual Sync distributor is no longer for a Sniper EFI because the cam sensor isn't used. They could also hire an expert to help them harden the Sniper against RFI noise. 1. I cant seem to find in the instructions on how to connect the tach wire. Instead of spending an arm and a leg, you can. After installing the engine, Sniper, HyperSpark, and wiring, in the car. Sniper AFR Problems. blondiee fesser Shut off the engine, ensure power to the Sniper is switched off. Sniper 1 has other known issues, so they even tried borrowing another throttle body that's known to work and the same problem persists. On the MAP, change the lowest MAP value to 20. The #1 EFI conversion system just got better! Introducing Sniper 2 EFI - a self-tuning, easy-to-install, EFI conversion for common 4-barrel (4150 flange) style carburetors. 5-inch handheld (only), wait for the temperature to achieve 160 degrees F. The Sniper EFI IAT sensor is a circuit board sensor that measures one throttle bore. I have 350 Chevy spec truck. Hey folks, new to the forum and the Holley Sniper. I have a 1963 C10 with a stock 350, other than intake being an Edelbrock RPM Air-Gap and a TH350 factory stall. Don't central banks get that they are making the problem worse, asks Maleeha Bengali, who says their moves threaten to make inflation a problem for years to come Orthopaedic problems in children are common; understand why there are Orthopaedic Problems in Childhood and how to treat Orthopaedic Problems in Childhood Try our Symptom Checker G. If it appears low, after confirming the battery, inspect where you have the pink trigger wire attached. By connecting the EFI’s main power and ground this way, allows the. I'm running everything Holley HyperSpark. If either of those two are not making contact, the 3. So this is a brand new build from the bottom up, Chevy 350. The person I bought it from said he never could get it to run for more than a few seconds. Check your wires (I found three errors while looking) Double check your distributor setup Listen to senior guys on here, go back and start at the beginning. If either of those two are not making contact, the 3. This problem is called sundowning. This is on a '68 Firebird 350, manual transmission, pretty stock. Nov 9, 2021 · I have a Holley Sniper EFI with HyperSpark ignition. Overall runs great except for lean (near stall condition) when I put it into gear, or decelerating and turning a corner. The person I bought it from said he never could get it to run for more than a few seconds. i need cure for herpes post comments Battery is also brand new. The Holley Dual Sync Distributor is a proven component that uses far superior Hall-Effect sensors, especially in EFI applications. Good afternoon. U stocks closed mostly lower on Wednesday, with the Nasdaq Composite dropping around 175 points. There are also plenty of videos to watch as well. Holley's Sniper EFI Stealth 4150 is the answer for anyone who wants the benefit of fuel injection, but wants everything underhood to appear as if that's a Holley 4150 carburetor under the air cleaner. It was running rough and leaking oil, so I decided to pull the engine and rebuild it (all new seals, clutch/flywheel, plugs, etc I'm a novice mechanic, but love to get my. Like all Sniper EFI systems, Sniper 2 is designed to. This is on a '68 Firebird 350, manual transmission, pretty stock. Most Sniper EFI users have problems with ECU timing control when using the magnetic pickup type distributors ( LINK ). It has a Pro-Billet distributor, 6AL and the Sniper. The distributor was loose. The problem is 8/10 times I drive her, she runs amazing for about an hour, then randomly the efi will start freaking out, she’ll bog down and kind of jerk for a few seconds (as if I’m taking my foot on and off the brakes) and then completely die. Here's the numbers. Like all headphones, however, they are known to develop s.
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Replaced one with a Holley OEM 02 and the second was with a bosch equivalent. (Holley EFI Typical Idle And/Or Running Problems) May God's grace bless you in the Lord Jesus Christ. Then handheld wire goes through a different grommet in the firewall than other wires. 07-25-2023, 12:36 PM. I haven't had this problem since install, it's something that has come on in the last several months. Holley Sniper EFI Black w/Fuel Supply/Dist/Coil Kit, SBC/BBC made by Speedway Motors, for as low as $2,454 Free shipping when your order includes this part. Forgot password or user name?. Holley Performance highly recommends the following items be checked and/or corrected prior to installation of your new Sniper EFI system to ensure optimum performance from your engine. No doubt Holley could improve the Sniper experience without too much effort. 12-29-2016, 11:37 AM. 12-11-2020, 09:09 PM My rebuilt 400 ci is running beautifully with the new Sniper. However, if you are looking for an affordable EFI setup, then the Holley Sniper may be a better choice. 565-519 Hyperspark dis. Currently the EFI is $750 and the tank kit $520 However the install instructions state the load-o-matic dist for my 66 will not work and to use a 68 or newer dist. If it can blipped or forced back to zero then something is sticking. The first occurrence happened after driving perhaps 16 miles. Sniper EFI Stumble. So, the pink wire from the ignition goes to the HyperSpark distributor, coil driver, and Sniper EFI. EFI system starts beautifully when cold, works fine when I drive it. There are a few tell-tale. Also in Air & Fuel Delivery Air Scoops Fuel System Kits. buy adderall online Tachometer Fluctuating. Hello, looking for some help with my Sniper EFI 4150 4BBL (PN: 550-511) BBC 454 street/strip cam, 11:1 compression. IAC Problems 02-22-2019, 06:18 PM. The aftermarket has a problem where people develop products that piggy back on other products, but the two products don't get tested together. 01-28-2020, 11:23 AM. An EFI fuel system needs two filters: Before fuel pump - 100 micron pre-filter. Trusted by business builders worldwide, the HubSpot Blogs are your number-one source for education and ins. Only wiring fault I found was at the female fuel pump relay receptacle, pin 30 & 87 are reversed in harness, relay function seems the same and it runs power though it when relay receives ground via small dark blue wire. '92 Ford Mustang GT: 385"/62 block, Eagle 3. '92 Ford Mustang GT: 385"/62 block, Eagle 3. A large red banner separates Holley's different EFI systems by name. Hi, sorry if this has been covered before. I've been here a few times and had some problems sorted out with your guy's help, so now I'm back. Hey guys, really hope that you'll give me some hints. Advertisement For most of u. Ensure the ECU is "Learning" (Learn Table LINK ). This is a very common Sniper issue that will impact both cold and hot operation. If the WBO2 reading is noisy or incorrect (as yours is in some portions of the datalog) the Sniper will increase fuel flow. New Sniper EFI install, having issues with AFR spikes when up to operating temperatures. Here's the current Configuration File. In the last year I have been struggling to fix a consistent hesitation I get under acceleration after it warms up. When it acts up, diagnosis is easy because the hand-held gives you data stream. What I have: Charger 1971, 383 big block, Indy tunnel ram, mild cam from Edelbrock, 2x4 Sniper EFI, MSD ignition with CDI box (connected without timing control). "With a Sniper you can't log a driveshaft sensor, for instance, and with the. book stores near me hiring I went through the initial startup and got it running, though I did not run it for very long. Check the CTS (coolant temperature) & MAT (intake air temperature) and compare. Bought a Standard TX3 from OReilly's and sat it on the intake for 15 minutes. He also explains how to properly install them. If it can blipped or forced back to zero then something is sticking. 05-18-2024, 01:55 AM I've just recently removed my old carburettor and installed the Holley two injector Sniper EFI0L engine installed, which is still in the running in process. After this starts, it also develops a problem idling, by surging and slowing until it stalls. A common mistake when building a fuel system is to position the more restrictive 10-micron filter in between the fuel tank pickup and the electric pump. If your mixture is too rich, it means there's too much fuel and not enough air. This is a very common Sniper issue that will impact both cold and hot operation. My car won't start with my Holley Sniper EFI attached. If you can find the install files you can install version 1. Very, very common problem with the Sniper one. Hey guys, new to the form I just installed my first Holley EFI unit 550-510 with the HyperSpark ignition system controlling timing. If the CTS is 10° or more higher than the MAT, the CTS is a faulty Holley unit and must be replaced. 08-25-2017, 01:35 AM I just installed my new Sniper EFI to my 351 Cleveland mild cam, Edelbrock heads, etc. From the datalogs I've taken, they all The problem is that after setting up the HyperSpark with the Sniper EFI I don't get any spark. EFI Software & ECU Firmware Versions: EFI SOFTWARE: Click "Help" tab (top toolbar) & "About Holley Sniper EFI". I assumed it was harmless, but I learned from a Holley tech that it will cause problems as the EFI won't act like it's idling. Notably, the throttle linkage has undergone reengineering, enabling compatibility with an extensive range. Trusted by business builders worldwide, the HubSpot Blogs are your number-one source for education and ins. Your ear has three main parts: outer, middle and inne. The Sniper EFI IAT sensor is a circuit board sensor that measures one throttle bore. lt40 wood mizer price Jul 28, 2017 · - Fuel pressure has been verified at the Sniper EFI throttle body and is between 55 & 65 psi - All wiring has been tied away from potential hazards such as the exhaust, fans, pulleys, spark plug wires, 12 Volt accessory wires, the ignition coil and ignition coil wiring. So I pulled up the vitals page under multi-gauge menu. The person I bought it from said he never could get it to run for more than a few seconds. My engine is the 572 ci crate from Ford Performance, I'll attach the build sheet if. I'm really starting to regret this "upgrade" to EFI. 3) The Sniper EFI SYSTEM creates a baseline FUEL Table, based on items 1) & 2) above. A momentary drop in fuel pressure will immediately cause a lean condition and likely a pop back through the intake. After years reporting on topics that are often categorized und. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. Notably, the throttle linkage has undergone reengineering, enabling compatibility with an extensive range. Each time, the same results: Noise on the RPM signal that is creating havoc. Most of us have a love-hate relationship with Facebook, and it's for a good reason. I installed the Sniper EFI on my SBC 360 with Vortec heads, Edelbrock Performer RPM intake and mild cam using a 1" 4-hole carb spacer. Your Datalogs are in the "Documents", "Holley" folder, "Sniper" folder, "Data Logs" folder ( Someone will analyze/troubleshoot the problem & offer advice. When you have a Sniper EFI problem, it's time to buy an inexpensive used Windows laptop (to download Sniper EFI software, retrieve the GCF from ECU, engine tuning & datalogging). Specs of testing: Truck outside over night high 20°F - low 30°F snow on vehicle and not started for 12hr before and during this test. Jul 28, 2017 · - Fuel pressure has been verified at the Sniper EFI throttle body and is between 55 & 65 psi - All wiring has been tied away from potential hazards such as the exhaust, fans, pulleys, spark plug wires, 12 Volt accessory wires, the ignition coil and ignition coil wiring. Originally Posted by Danny Cabral The Target Air/Fuel Ratio Table & Base Fuel/Timing Table (and MAP kPa & RPM axes/scales) should be configured using the Sniper EFI software: In the Sniper EFI software ( LINK ), Target Air/Fuel Ratio Table (Fuel ICF) & Base Timing Table (Spark ICF), select "2D Table" Type (not "Simple"). I've had the Sniper on an HZ Holden Kingswood 308 for about 1000 km now. Member List; Calendar; Forum; Holley EFI; Sniper EFI; If this is your first visit, be sure to check out the FAQ by clicking the link above. Jul 22, 2020 · At the top Toolbar, add the Boost ICF to your Config File (Toolbox, Add Individual Config). Right before the spike in AFR, the Fuel Flow drops off while TPS. Hey folks, new to the forum and the Holley Sniper. The Dual Sync crank & cam sensor signals also provide sequential injection capability (MPFI applications).
2) The USER creates the AFR TARGETS Table that identifies the "desired" levels of AFR, that the Sniper system will perform dynamic fuel injection. Please get in touch if I can be of service I didn't think it was a Sniper EFI problem. The self tuning Sniper was dumping fuel because of the O2 sensor reading. Car drives so much better than with (2) previous (factory. maryland basketball 5 star recruit Holley had an issue with the diaphragm with their fuel pump regulators that were supplied with the Terminator kit 550-407 and 550-408, they used the same regulator for two different EFI systems. I'm installing the Sniper 2 along with a HyperSpark distributor, coil & ignition box. I ended up finding a failed injector causing 99% of my problems. A simple list of problems in no particular order: 1) If the cold engine CTS value is 10 or more degrees higher than the MAT the CTS sensor is bad and the engine will not get correct temperature enrichment. Currently running an MSD Pro Billet vacuum advance distributor. I have changed out WBO2 sensors. kakashi crossover fanfiction 07-30-2018, 12:23 AM Just got a new Sniper EFI for my Ford Racing 302 crate engine. Easy fix with a sensor swap. This summer after sitting for extended periods of time, car wouldn't start unless I'd pump the accelerator pedal. I got it home, checked it all over, everything is hooked up correctly. The tachometer, however, while mostly stable, experiences random fluctuations. cool math gamds IR temp gun used to verify sensor body and. They should be nearly equal. Or, you might be afraid that your lov. With your first start, focus on the idle. There are a few tell-tale signs that can help you diagnose the problem. 07-23-2023, 11:15 PM. Connected the Sniper to it and it said 55°F.
I'm really starting to regret this "upgrade" to EFI. Pull the TV cable off the stud and see how the pedal feels (motor off) or not in drive. But dark blue pin 85, has ground when key is. Tach Not Working. Login or Sign Up Logging in Log in. New Sniper 2 install, some challenges. Tongue problems include pain, swelling, or a change in how the tongue looks. 07-25-2023, 12:36 PM. Let's take a look at the items that would need to changed or can handle the higher pressure. I ended up finding a failed injector causing 99% of my problems. Here's a good basic video for boost: https://youtu Remember, the only thing this EFI system self-tunes, is the Base Fuel Table, via the Learn Table. You have to be extremely careful cutting/prying it apart. At high altitude especially I'm constantly losing fuel pressure. stenography machine 07-30-2018, 12:23 AM Just got a new Sniper EFI for my Ford Racing 302 crate engine. Military snipers are highly trained sharpshooters that can hit a target from great distances. Holley EFI Troubleshooting: A 3% Error Caused THIS! Want to Learn How To TUNE Holley Efi, Terminator X, and Sniper? https://wwwcom/ -. Dental implant problems can include infection to insufficient bone mass. I think I did it right, let me know if there's a problem. The Inductive Delay allows setting it to eliminate high rpm timing reading fluctuations. Nov 9, 2021 · I have a Holley Sniper EFI with HyperSpark ignition. Tachometer Fluctuating. The Sniper Stealth 4500 EFI system is modeled after the Gen III Dominator carburetor and uses the same mounting points for the air cleaner flange. I found that many people had similar issues and the pressure regulator in the Holley Sniper isn't great and can fail. Nov 9, 2021 · I have a Holley Sniper EFI with HyperSpark ignition. In the last year I have been struggling to fix a consistent hesitation I get under acceleration after it warms up. The Sniper Stealth 4500 EFI system has a 2⅛-inch throttle bore and is outfitted with eight 100lb/hr fuel injectors for a total of 800lb/hr fuel flow. If the Learn Table is corrupted with erroneous values, I'd Clear the Learn Table with the Sniper EFI software. renpy open console I have a 72 nova that I recently converted over to a Holley sniper EFI. I do so and start adjusting, but the IAC Position goes crazy high when I reach. Holley 2300 sniper efi fuel pump problems. Tweet Sniper stalling on deceleration & in gear. There are a few tell-tale signs that can help you diagnose the problem. I was hoping to clear that up with the EFI setup, but this idle thing is killing driveability. I'm having an issue with my AFR spiking to mid-15 AFR from my target and sometimes it holds in the mid 15 until it starts to foul plugs. Jul 28, 2017 · - Fuel pressure has been verified at the Sniper EFI throttle body and is between 55 & 65 psi - All wiring has been tied away from potential hazards such as the exhaust, fans, pulleys, spark plug wires, 12 Volt accessory wires, the ignition coil and ignition coil wiring. The self tuning Sniper was dumping fuel because of the O2 sensor reading. Minimum Voltage: +12V. This usually happens when I'm in neutral. Observing the temperature on the 3.