Holley Sniper Efi Misfire - Solving RF Interference Issues in Sniper Installations.

So even though the net amount of fuel injected is the same, sequential EFI does it with. WBO2 sensor installed about 12” past the collector. Compression & leak-down are excellent, seems to make all the power it should, but has always wanted to pop out the exhaust at idle and overall idle rough. , striking reputed mafia boss Aslan Usoyan in the head as he walked out of the high-end. A large red banner separates Holley's different EFI systems …. On the trailer the engine runs perfectly fine, can let it get warm, sit on and off the throttle and can not duplicate the issue. On Wednesday, the newest airport terminal in the U. Installed the 550-510 kit on '78 Monte Carlo with stock 305. My brother and I build the car together, and we have the BluePrint 347 with the Holley Sniper EFI in our Mk4 Roadster. Carburetor Installation and Tuning carburetor tuning and adjustments video. Posted by Chris Myer 08/11/17 44 Comment (s) Sniper and Terminator X. One way or another, you still need to get a quiet alternator in there that. In two days I had it driving better than I ever had with Holley. If you look at the datalog you can see that the engine is rich and that it takes a fair amount of time for the Sniper to react. I have in the harness the switched power from my old HEI. So that means on a laptop go into the Coolant Temperature Enrichment table and change the graph, so that it's at 100% at like 150° or wherever you want Learning to …. 623" lift/114° LSA H/R camshaft, TFS R-Series …. Generally, the bigger the camshaft the more idle RPM it needs. When the truck was getting fed through the Quadrajet, my highway mileage was 10. There are a few things you can check to see if it's the ignition system. Like Danny says, use the correct intake for your engine and application. If this is your first visit, In the Sniper EFI software (Sensors ICF - Custom #1 drop down menu), the "Holley 100psig SS" sensor is Holley's 554-102 100 psi stainless steel pressure sensor. busted newspaper hidalgo county texas I got my tank, 255 LPH pump, straps, vent/rollover valve and sending shipped to my door for $540. Featuring 8 100LB/HR Fuel Injectors this kit is the perfect option for any build looking to make between 800-1500HP. touch screen via a 558-465 CAN splitter! The Sniper EFI 5 in. If you can find the install files you can install version 1. They can put an end to cold start issues, hesitations, vapor lock, and flooding. Therefore it must be the 'driver' or the wiring. Holley 10 micron external filter. In some cases it potentially looked like a misfire rather than a lean map. The fact that the WBO2 reading varies quickly it looks like a misfire, exhaust leak, valvetrain issue, etc. Tuning a 2300 Holley Carburetor is a straightforward process thanks to Holley's simple design and exterior tuning capability, meaning the carburetor may be adjusted on the fly whil. Perfect for street rods, hot rods, muscle cars, off-roaders and just about any carbureted vehicle, Sniper EFI will put an end to cold start issues, hesitations, vapor lock …. Here's how to prevent them from forming. Jamie Wiseman got this 1968cc VW Bus Engine dialed in with Sniper EFI. The Holley Sniper Stealth 4150 Self-Tuning Fuel Injection System has a base price of $1#,299. 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. Let's take a look at the items that would need to changed or can handle the higher pressure. 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!. Truck is a Ford F100 with a 390 FE engine. Take control of your LS engine with Terminator X! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley EFI at a budget-friendly price! Terminator X features real-time fuel learn, high impedance injector drivers, …. As far as I know, Holley doesn't fix the problem, they just make sure the connectors are making contact. Been using the Holley Sniper for about 2. You may have a misifiring injector. Overnight, a On Wednesday, the n. And while we recently wrote an entire in-depth article on the Holley Sniper 2, we wanted to share another video with you. This issue appears at both low RPM as well as at higher RPM. At the indicated temperature the idle speed should be 950 RPM, but the engine speed is 530 RPM according to the datalog. Doing this in Windows File Manager will …. Holley Sniper EFI I would talk with Holley Tech support. Sniper 1 Transmission Control Kit. 623" lift/114° LSA H/R camshaft, TFS R-Series FTI Comp Ported intake, BBK 80mm throttle. Your WOT setting does not come on until 3500 RPM and your engine will probably tolerate full "mechanical" at 3000. HyperSpark Master Kits include a simple wiring harness, coil, CD ignition box, and HyperSpark distributor. I found a drop base that clears the Sniper linkages and hoses, but the air cleaner lid bulges up and will surely not clear the hood with a 14x3 filter element. i95 va closed With a Hyperspark master kit you'll have four plug-and-play wires and you're ready to go! Fuel Pump, 12V Switch, Battery + and Battery -. Discover how the SNIPER sales strategy can help you close far more deals. 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 (), Target Air/Fuel Ratio Table (Fuel ICF) & Base Timing Table (Spark ICF), select "2D Table" Type (not "Simple"). I doubt Holley uses injectors that are not E85 "safe" on new products. Holley EFI; Sniper EFI; If this is your first visit, be sure to check out the FAQ by clicking the link above. 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. Learn more about the installation and benefits of this distributor by reading the Holley …. Holley 550-850 2300 Sniper EFI. This harness includes the Switched 12v Power Wire, Main Battery Power and Ground, Fuel Pump Relay, Coil - Input wire, and Magnetic Distributor Input wires. Find Holley Sniper 2 EFI Self-Tuning Fuel Injection Systems and get Free Shipping on Orders Over $109 at Summit Racing! Holley Sniper 2 EFI self-tuning fuel injection systems are perfect for street rods, muscle cars, off-road trucks, or nearly any carbureted vehicle. Turn the ignition to the On position. Why settle for a junkyard ECU with a cumbersome aftermarket tuning interface when you can take complete control of your engine with easy to use self-learning fueling strategies and the proven, race winning technology of Holley EFI. I live at approximately 5200 feet - Colorado. Sep 17, 2021 · Holley Sniper idles great, but runs poorly under load. It's likely that you have a slightly older version of firmware in your Snipe, but you're using the version 1. If you're ready for a 21st century 2300. scentsy pumpkin warmer 2021 Only some combinations are compatible. This is why most OEM EFI pumps are in the tank. Hyperspark Master Kits are available for all popular engine combinates and come with a distributor, coil, ignition …. injectors, although I've always had a rough time getting it to idle right since I wasn't running it in sequential. Some people cut out and replace the connectors with good success. @Ozzy355: The goal of tuning is to adjust the VE% Table such that the values in the Learn Table are (+/-) 5-7% after an extended period of driving. When cranking at 80°F the Sniper is cranking at 34. Holley (HLLY – Research Report) received a Hold rating and a price target from D. Looking at the datalogs shows zero TPS RoC & MAP RoC. Sniper - No Data Issue - Need Help. So it's either the handheld hack, or add a Digital Dash. The Sniper has been on this truck for around two years. View Sniper Stealth 4500 Efi Articles. I installed the Super Sniper Stealth earlier this summer and have been loving it. In this video, we walk you through choosing. connected to the purple wire (Crank Signal Positive) in the Sniper EFI Harness, using the provided Tach Signal Adapter. The lead engineer of Sniper 2 at Holley states that the Sniper 2 version incorporates everything the company learned from the Sniper 1 but takes it to the next level. The Inductive Delay allows setting it to eliminate high rpm timing reading fluctuations. 5 Exhaust UMI Suspension Stage 2 CPP. Also, the AFR ratio during those pulls is bouncing around 11. Simply slide the stripped wire ends under the positive lock connector and tighten down the set screw. However, that isn’t the case everywhere. I bought a new holley sniper , dual sync dist. Strange System Log crank position captured during misfire event. It appears that you either have a misfire or a weak cylinder, most likely the bank where you have the WBO2 sensor installed. craigslist job long island If it still is not zero, loosen, turn full CW and try again. And If that’s not enough Holley offers an 8 injector Sniper EFI XFLOW for up to 1375 horsepower! So when you serious about making big power with a thottle body EFI, look for Sniper EFI XFLOW. The handheld utilizes the battery ground large black wire and the ignition trigger wire and runs independently from the ECU. I have just completed the installation of a 671 Supercharger on my 454 Gen 6 BBC. May God's grace bless you in the Lord Jesus Christ. Sniper School - Sniper training occurs in all branches of the United States military. Machine shop thinks it's the Holley Sniper causing the issues, so here I am. Holley's base calibrations are not designed for good fuel economy. Updated handheld firmware, but won't update ECU firmware. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Fuel injection can be daunting after a life of tuning carburetors, but Sniper EFI is arguably one of the simplest to install systems available on the market. I plan to add heat shielding to keep the exhaust manifold from overheating the computer which is inconveniently located inside the Sniper housing. Test a couple plug wires with test light, getting no spark from the distributor. He determined that the ECU was faulty, I sent it back and they said it was good. Perfect for street rods, hot rods, muscle cars, off-roaders and just about any carbureted vehicle, Sniper EFI will put an end to cold. Holley carburetors operate at a range of 5. Make the switch and enjoy all the …. From Aeromotive : (FAQs - EFI Fuel Pressure Regulators): "Be careful using a factory OEM style filter-regulator, like those used in the Corvette, if your fuel pump flows more than 250 LPH. I'd replace the connectors rather than wait five weeks. Holley Sniper Surging and Stuttering (SOLVED) I haven't posted in a while, but I wanted to share some issues we had in case it helps someone else on the thread. I'll be honest and admit tuning is not really my thing, but I've been able to work my way around things for the most part. Sniper 2 EFI - a self-tuning, easy-to-install, EFI conversion for common 4-barrel (4150 flange) style carburetors. CST on December 4, 2023 (the “Sweepstakes Period”). The runner length and tapered cross section design will perform well for …. Today I hooked the laptop up to the CAN Bus cable, turned the ignition to run, and clicked on the USB Link. Holley Sniper EFI 4150 Super Sniper 650 with HyperSpark Ignition. Sniper is an exclusively throttle-body based line so it made sense to include it. For Sniper, Holley specifies 3/8" ID fuel line. I decided to look down the throttle body. Engine started running strange. Ran fine, but it sits a lot and one knows that carbs don't like to sit, that's why I bought the Sniper EFI system. Please post technical discussion regarding product in the user discussion spaces in the brand areas. Missing tooth crank trigger: The TDC Tooth Number (amount of teeth after missing teeth) is the Ignition Reference Angle. Sniper Teams - Sniper teams consist of two people thereby getting the most out of a sniper rifle weapon system. Along the way, they also developed a custom setup that allows its turbocharged V-Twin to …. Includes: Sniper 2 EFI Conversion Black Throttle Body w/Master Inline Fuel Pump Kit. Idle being a little higher than normal. Intermittent high idle - Sniper EFI. It is equipped with an E85 fuel blend sensor that automatically adjusts the tune to the correct settings for the fuel blend. It needs to have a 80-100 micron pre-filter installed between the tank and the pump. I wanting to put the holley sniper on my 96 5. • Use the appropriate amount of timing advance at idle. Harness signal wires wrapped/sleeved, no change. If the Holley fuel pump is going bad, then also it would make a loud buzzing noise and you may also experience vehicle-related issues like engine misfire, loss of power and acceleration, engine stalling, and a decrease in fuel efficiency. I have the WBO2 adapter from Howell and everything is installed. Reconnect the negative terminal and turn the ignition key to the. Used for high performance or larger displ. The fuel pump is external and even with the bottom of the fuel tank. Odd EFI quirks for the odd-fire V-6. Avoid using any 90 degree fittings between the tank and pump. Complete your Sniper EFI install with our 1" drop base to gain some extra under-hood room and unleash the full potential of your new fuel injection system without modification! The Sniper EFI air cleaner drop base was designed specifically for use with the Sniper EFI 4BBL throttle body and a 14" air cleaner element and lid. So the Sniper can't tune its way out of the problem. Sniper backfiring out unit & exhaust. I was hesitant to make the carb to EFI conversion, but glad I did!. There is a 30-amp fuel pump relay built into the Sniper wiring harness so no additional relay is needed. Bank-to-Bank or Paired EFI injects half the amount of fuel (lb/hr - PW), twice for each combustion cycle (4-stroke engine). The car is working, but the customer's mistake the first Wizard was made for the Super Sniper version. The EFI system is completely Holley, Sniper 2, HyperSpark, ignition, and in-tank returnless fuel pump. So you can hook up fuel pressure, oil pressure and one other such as brake pressure or pan vacuum. Because the MSD receives power directly from the battery, it does not require much current to keep the unit energized. The RPM will stay high, as though I still have the pedal pressed, usually right at the top RPM just before I let off. Talk About Some of the Enhancements of the Sniper 2 Over the Sniper 1. If you unit is shutting down and then you have to wait to restart then you're probably on the right track with CPU heat. Holley EFI Training Course Part 1: V5 Software Installation & Overview walks you through how to install the Holley EFI V5 software onto your laptop. To build the ultimate 80s street cruiser, Sick Customs in Phoenix, Arizona revamped this ’89 FXRT from stem to stern. The Holley Sniper EFI (Self-Tuning Kit) is a fuel delivery method using fuel injection in place of a standard carburetor. Factory Refurbished 4 Barrel Sniper. The Sniper 2 EFI Bluetooth Module allows you to wirelessly connect to your vehicle's EFI system …. Hi all! I'm new here and newish to Sniper and other fuel injection systems as well. With the key in the on position (not running), the LED should flash five times to indicate all systems are go. Do not remove the regulator in the pump unless you want to run a external regulator and a return line. exhaust leak upstream of the WBO2 sensor, incorrect idle IAC Position, misfire or ignition problem, and a fuel pressure problem. Individual service items are available for replacement of components. So I did and now it won't update the firmware to the ECU. This high-tech module is designed for Sniper 2 EFI systems, providing unparalleled control and customization for your engine. Companies in the Industrial Goods sector have received a lot of coverage today as analysts weigh in on Caterpillar (CAT – Research Report), Ho Companies in the Industrial Good. From searching the forums and the interwebs, it sounds like this is caused by a mismatch in FW versions between the 3. Good fuel economy is a direct result of the fine-tuning performed on the EFI system. Your ignition timing could be …. Lunsford of Holley Performance. 5" Hi Flow V-Tex merge pipe with dual 2. Holley Sniper 550-511 EFI 4150 4-Barrel Self-Tuning Base Kit (more details) Put an end to mysterious air/fuel ratios, jet changes, and cold-start rough idle troubles with Holley Sniper EFI. EFI needs a really good spark to work optimally. If your Sniper isn't working the first thing to do is verify that you have compatible versions of code in all devices. I have the sniper efi system with the holley retro-fit in tank electric fuel pump. I appreciate any and all help! Specs: Holley Sniper 550-511. The easiest thing to do would be to loosen the TPS, turn it as far CCW as you can, tighten, and test. Holley Sniper hesitation/bog on sharp accel. Wideband Oxygen Sensor Extension Cable. To reset the holley sniper efi system, first, disconnect the battery’s negative terminal. An EFI fuel system needs two filters: Before fuel pump - 100 micron pre-filter. Progressive linkage may help, but first: 1) Your full scale RPM on your Base Fuel Table is set to 8000 RPM. 5 psi of fuel pressure and use a 40 micron filter. The HyperSpark is plugged into the green and purple connector and has clean ignition …. Holley Sniper EFI Hypserspark Master Kits are designed to make your EFI conversion as simple as possible. Built to fit squarebore and spreadbore intake manifolds. 1250 HP version features eight 100 Lb/Hr Injectors (Forced Induction) The 800 CFM Main Body will support 650 Horsepower Naturally Aspirated and up to 1250 in boosted applications. Have had Sniper installed & running well on my Chrysler LA408 stroker for about a month now. Don't have enough money for your entire long-term travel experience? Here's how to find work on the road. This question is about installing a Classic Auto Air system on a V8 engine with a mild cam equipped with the Holley Sniper. 55 Rear End, IRS, 17” Halibrand Replicas (9” front, 10. I wanted to ask this question on another thread, however, it was closed. Then turn the key to engage the starter. No data flashes and yet to have a good start. Sometimes erratic idle when warm as well. The point which the IAC ramps back down is dictated by the “RPM Above Idle to Start Ramp”. I work at a shop and we have installed right around four Snipers on customer vehicles, two of them had HyperSpark, everything on the first few went really smooth without issue. Well I sure have been going through it with this system. Compatible with Draw thru or blow thru forced induction applications. Join Date: Jun 2020; Posts: 12; Share Tweet #15. This may be a symptom of your linkage. Installed whole Holley setup: Sniper, HyperSpark, & In-Tank Pump on 327 SBC (Stock). 5" exhaust through Hooker Aero Chamber Mufflers. 5” rear), Nitto 555 G2’s (275/40ZR17 front, 315/35ZR17. This line of distributors comes with a connector on the Sniper EFI Main Harness (7 pin Connector). Any help in taking a look at the Config File & datalog is greatly appreciated!. I tried the search, but nothing showed up. We accidentally jiggled the 7-pin connector and the engine popped & sputtered. Also in Plumbing AN Fittings and Hose. I have a Ford 352 FE with the Super Sniper EFI and Holley Dual Sync Distributor installed. I know this is my first post but I'm already in deep trouble with a Holley Super Sniper throttle body EFI (8x100lb injectors) - inside a housing that looks like a …. Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. The new 5-inch Dash provides three different displays of drivetrain information from the popular Sniper EFI systems such as throttle position, air/fuel ratio, manifold pressure, and more, plus it provides GPS signal for speed! “The new 5-inch Dash provides an outstanding view of engine data in real time, saving you the hassle of installing. I set timing to 18* where is normally is, then I hooked the vacuum advance up and the engine ran like crap. I'm having trouble with a customer vehicle. My initial firing of the engine started right up and ran pretty well through warmup. If I swap injectors the problem does not move along with the injector. Serious race engines with radical camshafts will need to idle at 900-1000+ RPM, due to the camshaft's tight LSA which causes a high overlap. Stock low mileage engine, runs perfect everywhere, but at idle. NOTE - I've found the following EFI tables to be the most significant areas for improving fuel economy: Target Air/Fuel Ratio Table (too rich in cruising area). I have a '68 GTO, Pontiac 461 Stroker engine that was recently build and dynoed by Kauffman Racing. The company Holley (HLLY – Research Report). Ambient temps in the upper 80°s to nearly 100°F. 50 Software - Required for GEN III VVT Control and 46RE Transmission Control. Current settings: A/F at idle = 13. Holley Sniper 550-511K EFI 4150 4-Barrel Self-Tuning Master Kit (more details) Put an end to mysterious air/fuel ratios, jet changes, and cold-start rough idle troubles with Holley Sniper EFI. You could temporarily disable Closed Loop and check it at idle to see if the idle stabilizes. neeves knives gravity knife I'm struggling with an issue where my RPM do not go down after lifting off the throttle. dod cyberawareness I'm repowering my boat with a Chevy 350 and the Sniper EFI system. Estate planning is taking on an entire new meaning in the digital eraFB Estate planning is taking on an entire new meaning in the digital era. Someday you may need to take a data log from your Sniper EFI system. But the Super Snipers (650 & 1250) clearly states this in the overview twice: ! E-85 - Not Recommended. chevy nova for sale san diego Built-in Single stage progressive nitrous control. This TT arrived with a misfire. A stab of the throttle results in fiery backfire through the throttle body, any acceleration underload also results in popping and sputtering. Jul 26, 2023 · The number 1 EFI conversion just got better. How To Load A Global File, Step By Step. Performer RPM heads & intake, mild cam, Stealth Terminator EFI, MSD 8590 billet distributor mechanical advance, 6AL box TFI Blaster coil, 8. Bring that classic into the 21st century with Sniper! Video. Sniper 2 is a brand new design from the ground up. Finally, adjustments to the Fuel Table or . There have been several people on this forum that have installed and are running the V2 firmware and EFI software on their Sniper 1. Each tank is a direct fit for your application-no modifications necessary. 95#, while a Super Sniper EFI system with a HyperSpark kit will cost just over $2#,000. As RPM increases, the engine requires different ignition timing due to a . Footage taken from Holley Carburetor Installation & Tuning DVD. I purchased a nice '70 Camaro a few years ago, but the carb setup has never been right for the street so I thought I'd convert to a Sniper EFI. After installing the CTS, let the engine come up to temperature and adjust the idle screw until the IAC reads 2 to 5%. second shift part time Sniper EFI Troubleshooting Guide - Pre-start checklist - Sensor verification - No Start Conditions - Holley EFI Display Software If you're updating your EFI software, ensure …. Reveal even more data by pairing up the EFI 5 in. Sniper EFI throttle bodies require 58-60 psi of fuel pressure and a 10 micron filter. Ensure that the throttle arm, throttle stop, and return spring are all located at the same location as the manifold. Under partial load it gives what seems to be a very intermittent misfire. Two powertrain management systems from Holley that offer plug and play control for most small block Ford engines including Coyote engines starting at just $999. Seen a lot of posts about interference. It's a bolt-on carburetor replacement that is compatible with both single-carb and dual-carb manifolds and features a throttle-body-mounted ECU, so there are no extra boxes to mount. If this is your first visit, Holley Super Sniper 8 injector. On EFI systems such as Holley's Sniper, all of the EFI sensors (except for the O2 and coolant temperature sender) are mounted snuggly in the throttle body. This cable allows you to access the full features of the Holley EFI software, such as tuning, data logging, and diagnostics. 4) Cycled the key with the IAC motor unplugged during high idle condition and the high idle condition continues when cranked back with the IAC motor unplugged. Holley HP EFI Misfire Under Load. If your engine continues to run even when the ignition is turned Off you are experiencing engine Run-On. Thanks to Sniper 2 converting to EFI just got a whole lot easier. I have a Holley Sniper 4150 and yesterday I read something about updating the ECU firmware on the Holley. As I've posted in this thread I've been chasing a strange "misfire" that is very intermittent on my RAMJET 350 that utilizes GM HEI ICM remote coil, i. 1) Launch the Holley EFI software from the icon on your desktop. When engine is idling now there's a vacuum sound by the rear of the throttle body. So that could be the problem or you could have some other issue. Feb 1, 2021 · Sniper EFI Tuning & Tech. I'm trying to learn how to tune our Sniper setup. The most common cause of this problem is a blown fuse on the large red wire leading to the battery or an improper connection at the battery. If the throttle linkage doesn't return to zero due to binding or weak return. bigbig on da comics In most places throughout the U. The pump arm should move down a bit when the feeler gauge blade is inserted. I have driven it now several thousand miles without any repeat issue. I used the 8 injector 2x4 Super Sniper system, installed an in-tank fuel pump with return, a boost referenced. The pump only puts out 6 psi as it sits. The Holley Sniper does not run the timing and I am tempted to swap out to a Holley Hyperspark system. The kit includes the tank, a 255 lph fuel pump, internal baffling, and a fuel level sender. Once the engine CTS comes up to temp of 160°F and the MAT is above 80°F, it runs great, but it stumbles considerably until then. 5-bar compared to the Terminator X’s more meager 1-bar sensor. Learn about sniper scopes and see pictures of sniper scopes. Holley Sniper 2 EFI: The #1 Selling EFI Conversion Just Got Better. -Installations (Holley Sniper EFI RFI/EMI Issues) May God's grace bless you in the Lord Jesus Christ. Holley Sniper Features: * Bolt on 2300 Flange Carburetor Replacement * Supports up to 350HP with Two 100lb/hr Injectors * Accepts many common 5 1/8" OEM or aftermarket air cleaner assemblies * Throttle body mounted ECU – no extra boxes to mount * Only 4 Wiring Connections Required (Battery +, Battery - , Switched Ignition & RPM) * Internal. Sometimes there wouldn't be a stutter but the engine would surge during acceleration. A legend returns - the tried and true Mallory Unilite Distributor line is back! The easy three wire hookup of the Unilite makes running a stock coil, a Mallory performance coil and even a Mallory HyFire CD ignition a snap. If it starts then you have more of a tuning issue with the Cranking Fuel rather than a stuck injector or something. A shut-off valve should be installed on the outlet side of the fuel pump. I’ve checked all wiring and nothing changed and no air leak in the exhaust. Oct 4, 2020 · Holley EFI; Sniper EFI; If this is your first visit, be sure to check out the FAQ by clicking the link above. Ready for use with EFI right out of the box, they. Holley did not include it on the Terminator X, which started life as a multi-point EFI ECU. Check for a small dent (s) on the plastic surface on the handheld. Standalone Transmission Control Kit - For Carbureted Applications. It’s perfect for any vehicle that came standard with a Holley 2300 Carburetor Flange. I've been messing with my coolant enrichment. Watch me build two tunes from SCRATCH (a streetcar and a methanol. Even Holley said either their tank or Tanks would work just fine. 6 and the car running like crap. Timing Control with the Sniper is a valuable feature, but the instructions only show how to connect it. Holley Sniper Fabricated Manifolds continues to push the aftermarket by introducing Low Profile intakes for GM LS Engines. 5) Car consistently idles correctly after a key cycle. Ensure that the Holley fuel pump is running fine by checking the fuel pressure at the fuel pump outlet. Sniper EFI just got better with 14 new features for the best performing, most modern, and seamless EFI conversion with Sniper 2. Holley's Sniper EFI Self-Tuning Master Kit is the best way to upgrade your car to fuel injection in a cost-efficient way with just 4 simple connections required. Ignition and Electrical Components. Find out more about convenient delivery options and our satisfaction. Holley’s Sniper EFI systems bring fuel injection to the masses with carburetor-replacement systems that are designed to have …. As with anything, fuel to air flow through all rpm ranges is the concern. I spent an inordinate amount of time on the Early CJ5 Forum, one of the Holley Sniper EFI groups on Facebook, as well as the Jeep Dauntless 225 V-6 Facebook group. There's no evidence of misfire in your datalogs so perhaps you just think it's misfiring. Aug 11, 2017 · This is why most OEM EFI pumps are in the tank. Each manifold is ready to bolt on out of the box and are …. Some people get a little carried away with Blanking values or see the various posts online saying they should be 7 and yada, yada, but don’t realize that’s for the other Holley EFI systems and not Sniper EFI. With dual-plane & AFR 195 heads, made 350 HP to the tire. Read link: The Holley Sniper EFI will intermittently inhibit Closed Loop at idle, if the AE vs TPS/MAP RoC Blanking values are set too low. Terminator X and Terminator X Max. The proper adjustment prevents the diaphragm from getting stretched to its maximum limit at wide open throttle. Feb 25, 2020 · For starters, your fuel system will need to be upgraded. How Sniper EFI Helped Get The Andersons' C10 Project Back On Track. These tank kits are a complete …. Test drive it with a timing light taped to the windshield if necessary. 7750 e broadway rd mesa az Holley tech support has been very helpful to me. The car runs good, but now it stalls any time I come to a stop. I HEI Distributor + LiveWire wires. There isn't a straight-on application that works with the Go Devil engine. All sensors are tested to ensure they accurately …. The ones you posted could be fine, but it really depends on the camshaft and the cylinder head design. The cable is compatible with all Holley EFI systems that use a CAN bus, …. Was wondering why with a brand new 180° thermostat, it was running 162° on the road. The problem is that after setting up the HyperSpark with the Sniper EFI I don't get any spark. Distribution Blocks, Filters, Adapters and Fittings. You may have to register before you can post: click the register link above to proceed. Apparently, the base Sniper EFI can run E85 and there is a setting in the Wizard for it. Top 10 Sniper EFI Installation Tips from Holley's Tom Kise. Sniper Stealth 4500 EFI Sniper EFI Videos Sniper EFI Tech. Piecing together older MSD 6AL & new Sniper. Car runs so much better, except it …. So I got my replacement Sniper this morning, and got it back in place. If you can do it safely, connect a hose to the outlet of the Sniper at the regulator (passenger side rear port) and trigger the ignition switch to start the pump. Please be aware that this is a community forum. The Sniper Transmission Controller (STC) is designed for common GM and Ford electronic 4-speed transmissions. Holley Sniper Parts and Accessories. 623" lift/114° LSA H/R camshaft, Trick Flow R-Series FTI Comp Ported intake. Using the Holley Sniper EFI software (LINK), Clamping a timing light on each cylinder, works well for misfire detection (watch for consistent flashing). Do I still need the holley 12-753 30 amp relay. Say good-bye to the troublesome LT1 optispark ignition system and enjoy the reliability of the LS ignition system. 5 or leaner and feels almost like a rev limiter. It seems I have an intermittent misfire when the MAT is below 80°F. com/ ---- Cick Here!tune the trilo. The PDM integrates three relays: one for the throttle body, one for the fuel pump, and one for a 25-amp electric fan while including diagnostic lights to help with troubleshooting. Jun 6, 2017 · Yesterday, after work, brought the car up on #1, then turned balancer to 50* BTDC, and swapped in the Dual Sync. We kept some of the tried and true features from the original Sniper, like our Self Tuning capability and the easy to use calibration wizard, while improving on virtually everything …. The unit is factory set and ready to run as received. I've also heard good reports from using a Standard Motor Products TX3 , ACDelco 213-928 & Delphi TS10075 CTS. When breathing like a sniper can't get you a steady enough shot, you need to call in the big guns—that is, external camera equipment. The client cannot redo the Wizard, when we make any changes, when we turn the key, everything …. RPM going up and down , miss firing and backfiring. 5" TSLCD and computer won't be able to communicate with the Sniper. 1/4" NPT Supply and Return line. A great option for converting a carbureted car to EFI is to use a Holley Sniper EFI Conversion Fuel tank. First time posting in the forum because there's still some small items I can not sort out on my own. Any suggestions or help would be much appreciated. Questions for the moderators - This is for questions regarding user accounts, log in issues, how to use the forum, etc. Go by 3/8" inside diameter, not outside diameter (fuel supply hardline). Holley EFI V6 Software Build 400 Installer. Categories/ Air & Fuel Delivery. When installed concurrently with a new Sniper EFI system, the combination creates the easiest to install EFI conversion on the market - only four flying lead connections required! This harness only requires one connection to a switched power …. So I adjust the shift light to 5000 RPM and give it a run down the road again, and sure enough it hits 5000 and starts misfiring. Holley Sniper TBI & HyperSpark Ignition kit installed. We recommend at least a 3/8” feed line and 3/8” return line. There was a Purple/green combo coming out of the 6A box that connected to the distributor. #1 · Nov 26, 2016 (Edited) Sowas having a stalling problem since converting to locked out distributor and enabling timing controldid this 3 days ago, and finally drove the car …. If you are experiencing run-on, it is due …. It also distributes power to your EFI fuel pump and a single fan (second fan can be ground …. Not only is it a great time to replace your crusty old fuel tank, but Sniper EFI Conversion Fuel Tanks incorporate OEM-style fuel sending units so you don't sacrifice your fuel gauge. The Power Distribution Module (PDM) is a cost-effective and optional accessory that isolates the core of your EFI and ignition wiring into one, easy to use location. You can also add the Holley EFI analog gauges, but that still doesn't solve your problem since the Sniper doesn't know what fuel pressure and oil pressure is. Holley Sniper Efi Basic Kit Polished Self Tuning 650 Hp quantity. Anyway, I opened the Config File in Sniper EFI software and there was only one box that when ticked allowed only Fan #1 to fire with the A/C, The A/C IAC Kick is at 50%. Recently been experiencing a hard to start issue. Let's face it, you love driving your classic car, but dread the hassles with your Rochester 2GC Large Bore carburetor. I added 5% more fuel for the temp enrichment at the necessary temps and the spikes disappeared. On a Cobra replica common problems that will cause Sniper (or any aftermarket EFI) issues are: 1) Exhaust leaks at the header flanges, even a pinhole will cause overly rich conditions. Connect the main battery ground to the stock location on the alternator bracket with a star washer and make sure the surface is clean. New Sniper EFI install, having issues with AFR spikes when up to operating temperatures. Sweepstakes Timing: Sniper 2 EFI Master Kit Giveaway (“Sweepstakes”) begins at 12:01 A. Wondering if it's a bad WBO2 sensor or stuck injector. Within the last quarter, Holley (NYSE:HLLY) has observed the following analyst ratings: Bullish Somewhat Bullish Indifferent Somewhat Bearish Within the last quarter, Holle. Comments3 · How to Tune Acceleration Enrichment in Holley EFI // Terminator X, HP, Dominator & Sniper · Every Cylinder Misfire on one bank?. The Sniper Stealth 4500 EFI system has a 2⅛-inch …. Thus, Holley can not guarantee an answer or timing on an answer. The Sniper EFI System comes with a built in fuel pressure regulator, factory set at 58. The secondaries don't open until after 2000 rpm as you can hear in the video. Yes, you can adjust the timing with Holley Sniper EFI to optimize your engine's performance. Right now you are only running 1/2 a EFI system. Three part numbers cover a complete range of applications - all Sniper EFI systems, Sniper 2 EFI specific (M8 CAN connection), or a full standalone unit. In the datalog, you can see the TPS, MAP, and. The system includes two ground inputs, one TPS output (0-5v), and one …. Did more research and decided to make a couple of changes - 1. My setup is as follows: 351C, Holley Sniper EFI 4150, HyperSpark, Crane Cams ignition box. The US Supreme Court today heard arguments about juvenile justice and uniquely harsh American punishments. Go to your "Documents", "Holley" folder, "Sniper" folder, "Firmware" folder. The number 1 EFI conversion just got better. Genuine Walbro Fuel Pump included. With a redline set at 6500 you're losing potential tuning resolution in the Base Fuel Table and the Target AFR table. I attached my Config File, a datalog of my AFR at cruise, and a longer one from my drive to work. Holley Sniper EFI is a perfect match for any muscle. 4 Inputs – 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation. Two months ago I installed a Sniper EFI on a stock 1968 Ford 302. Lots of dynamics can effect the distribution of air & fuel into each cylinder, however, the Sniper EFI was designed to be used with both dual & single-plane intakes. These connectors are keyed, however the Purple wires should plug an ignition misfire. From Aeromotive : (FAQs - EFI Fuel Pressure Regulators): "Be careful using a factory OEM …. 470" forged steel crankshaft & …. The TPS goes to 0%, but the IAC stays at 30%, as though I'm. mod rechargeable grooming clipper Any help would be greatly appreciated. Dynatech long tube headers with 3" Dynatech exhaust. Upgrade Your MSD Atomic 2 EFI System With These Great misfire and erratic timing, use at your desecration. Swapped to single-plane and Brodix Dragon Slayer heads and made 400 to the tire, but TQ did drop some compared to first run. Unbelievable! I simply can't believe two units in a row won't work. I currently have a Holley Sniper EFI running along with my MSD distributor and 6425 Ignition Controller. During wide open throttle operations with the RPM range between approximately 3000 & 4000, the engine appears to be missing. The design includes a single Hall Effect sensor providing engine RPM to the ECU. I went through the diagnostic test with a tech over the phone. It has a Pro-Billet distributor, 6AL and the Sniper. I have a slight misfire that I can only feel at idle. I tried first by download the Config File to the SD card, altering the setting on my computer using the Sniper EFI software, then uploading it back to the ECU. Thanks for sharing the actual facts, Matt. For a quick test, loosen the TPS and rotate it CW or CCW to find a new "zero" spot. The secret to Earl's Vapor Guard hose is in its layers. Designed to replace sending units in factory fuel tanks, the Sniper "Muscle Car EFI Module" slips a 255 LPH fuel pump inside to deliver reliable and quiet fuel delivery. The one thing I notice is my air fuel ratio goes way lean on deceleration. The customer had replaced spark plugs since last visit, but still had a misfire under load. QuadraJet Sniper, HyperSpark distributor & CDI box. After this initial setup, the car was parked in the garage with the battery disconnected until today. The internal 255 LPH fuel pump module includes a …. The fuel pressure is internally regulated to 58 psi eliminating the added expense and effort of purchasing and installing an external fuel pressure regulator. First, check the fuel pressure. I know the recommended method is to run off a relay, but want to keep it simple for the moment. Misfire & No-Fire HyperSpark Troubleshooting 12-21-2021, 07:48 AM. A Digital Dash is the perfect add-on to any hot rod or race car! Whether you need something interface with your standalone EFI system or are just looking for a versatile digital screen to display all of your engine's vital information, the Holley EFI or Racepak Digital Dash is the ideal solution for you!. Automotive Wiring: "Good Enough" Is Anything But! Todd Veney. The 5-inch digital touch screen display is pre-loaded with 3 easy to read layouts that provide critical system information, such as Throttle Position, Manifold Air Pressure, Air Fuel Ratio, …. The car starts fine and will operate just great, until it gets hot then the fuel pressure suddenly drops from 58 psi to zero. With a completely new Individual Configuration File (ICF) for drag racing transmission control, as well as a revised nitrous ICF, this update promises to be the best software yet!. Introducing the Sniper 2 EFI Bluetooth Module - the cutting-edge solution to take your vehicle's performance to the next level. Holley makes it easy to convert your classic car with a Rochester 2GC Large Bore two barrel carburetor to fuel injection. I purchased the Holley Sniper EFI Self-Tuning Hyper Spark Master Kit Part Number: 510-550-511K4 from JEGS around 9/30/18. Just select the kit you want in the option selection drop-down, above. 5,527: 52,529: Full lean at WOT, and after driving for 20 minutes. 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. The Sniper unit won't directly bolt onto the Go Devil's manifold. This usually only occurs on older vehicles with an external voltage regulator. Jan 21, 2024 · An unstable AFR reading causes the Sniper to chase it and potentially overcompensate. Today's fuels are blended for modern fuel injection, not that old 2 Jet carburetor from 50+ years ago. There are no universal settings. Affordable aftermarket fuel injection is here and it couldn't be any easier to install on your vehicle. Sniper EFI 2-barrel kits can support up to 350 HP. I have checked compression and replaced the plugs. At certain load and RPM conditions the engine, intake, exhaust, and cam will determine if more or less fuel is required to achieve your AFR. 0 usec, which keeps advance at 30° when I rev engine. operations much be performed within the Holley EFI software. External pumps are loud and often …. We're Hiring! https://v8speedshop. Maybe Holley will add Fuel Prime Multiplier to Terminator X later. ECU, dash, and handheld firmware are included. Over the last two mornings, I've had severe drivability issues with my Sniper EFI system. As I'm sure most people here know, EFI plus no RPM equals no start. If I accelerate gradually, it seems to do just OK, but if I give it the gas a little quick, I get pop, pop, pop stumble and then it catches up if I let up. “We moved the ECU to the side and redesigned it from the board up, all new hardware, new firmware, new …. Once disconnected, hold the brake pedal down for 10 seconds to discharge any capacitors. Sniper Scopes - Sniper scopes are specialized telescopes which amplify an image from great distances. I broke in the cam on the new engine (SBC 400) with the sniper and dual sync, also with really no issues. A reset can help fix issues like low fuel pressure, incorrect sensor readings, and misfire codes. A problem has started with after around five minutes of driving. The unburnt fuel & air will make it also spike the AFR gauge. as well as New Zealand, offering an expanded slate of features meant to appeal to Twitter’s mos. Looks like your Base Fuel Table is too rich, so whenever the Sniper is in Open Loop the engine runs rich. The Holley Sniper EFI 2 is an updated version of the original Holley Sniper EFI. Makes it real easy and simple to setup. Twitter’s premium subscription service, Twitter Blue, is launching today in the U. Not the picture of efficiency when new. With Learning applied the Base Fuel Table is essentially showing what is required to meet your Target AFR. The precision shutter wheel design ensures …. The diecast aluminum top flange includes an 6AN inlet port, a 6AN outlet port, and a fuel filler cap. eep file, Firmware folder/Documents) are included in the EFI software download. Datalog is a short drive around the block with some varying throttle. This can also cause a bit of a stumble. Let's face it, you love driving your classic car, but dread the hassles with your Rochester 2GC carburetor. My Sniper efi/Hyperspark system has been working great for months, the other day I was coasting down a hill and all of a sudden it developed a misfire. Included is Holley's Hydramat which acts as a pre-filter and prevents fuel starvation from hard acceleration or cornering. Learn about sniper teams and sniper team weapon systems. Sniper EFI - V1 SD Card Contents. But you can't see these 3 pressures on the handheld or on the Holley EFI gauges. The Sniper has had a few issues but with the help of Holley tech support those have been mostly sorted. The Sniper specific applications connect to your Sniper EFI system via CAN bus and is …. This can cause poor running or a misfire that. The CDI Box will provide your tachometer its signal for RPM, if using a CD box and timing control. The gasket under the old carb had a little matterial missong between the large holes, so I used a little gasket maker to seal it up a bit. - Handheld powers up - Wizard has been run with correct Non Timing Controlled Ignition setup chosen - Fuel pressure has been verified at the Sniper EFI throttle body and is between 55 & 65 psi. At the bottom of the page will be a Dwell Time setting. It's fairly common that throttle shafts start to stick at higher temperatures as the base distorts due to the heat. Turns out that the Sniper sender is about 5° hotter below 100°, the same between 100°-160°, and way low at running temp. Below are recommendations for various factory GM LS coils based upon …. separate ECU=HP EFI : attached ECU=Sniper Ford 302, Holley Terminator EFI, T5z, 3. 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 was configured in the Wizard. This Quickfuel 1/2-inch Square-Bore 4-Hole Phenolic Spacer might be an adequate solution if you have the hood clearance available. I have about 10 inHg vacuum at idle and this cam, and I'm wanting to make the correct choice with my Sniper settings: Cam Type: Roller. Tags 355, engine, misfire, sbc, starts, streetfire It was a vacuum leak between the carburettor (600 Holley) Sniper EFI Powered 355. Today's fuels are blended for modern fuel injection, not that old 2Jet carburetor from 50+ years ago. Categories/ Plumbing AN Fittings and Hose. 5" LCD and the Sniper PC software. 3L LS on my airboat that I've been chasing an issue on. I have attached my latest Config File and datalog from this morning. Sniper EFI Expands In-Tank Pump Lineup! Staff Writer. Find Holley Sniper EFI Conversion Fuel Tanks and get Free Shipping on Orders Over $109 at Summit Racing! One of the most popular updates for an older vehicle is swapping out the carburetor for electronic fuel injection (EFI); but using an external pump to supply the high pressure needed for EFI can be a problem. If it's too low, adjust the regulator to increase the pressure. Hello, I'm new to this so be patient please, LOL. Ran great until I replace a lifter. The Sniper uses it's own software and is not the same as the HP line. javhd drama did cole hauser play professional soccer Kevin Ruth, head of wealth planni. I made the trigger temperature points on both fans the same so. A misfire will cause a lean spike, a drop in RPM, and the Sniper will attempt to recover. Move the truck a few feet, shut off, install new fuel pressure regulator. If the timing is off, rotate the distributor so that you get 15°. Hopefully you ditched the ballast resistor, not sure it’s even possible to run a Sniper with it. 030" over, Trick Flow heads, and Holley Sniper with HyperSpark ignition. Sniper EFI ECU and Handheld Firmware Revision Log. He goes on to state that the company also listened to customer feedback and built everything from. It has a Howards Cams (210931-10). These are prone to mechanical damage such as might have occurred during shipping or inadvertently during installation. GM HEI Small Cap, remote coil, with computer controlled ICM, Holley 36 lb injectors, 43 PSI fuel pressure, etc. As far as I know this should not be the case. For most street applications, this value will typically be between 30-40%. I have a 383 stroker in a '69 Camaro. is one of the most educated countries in the world, it doesn’t provide the same quality elementary school or seco. I've been fighting a idle miss in a 5. The connections are clearly labeled on the cover and easily made with positive, slip-in fittings. Fuel Prime Multiplier is primarily a benefit to throttle-body based EFI systems. Sometimes dies or stalls and catches itself. How to install the easy to use Sniper EFI Hyper Spark Ignition System. I stopped at a gas station, fired it up and I get the AFR, A/F on Sniper reading 35. This minimizes installation time and packages really well on a diverse group of engine applications. Cold startup 40°F it struggles to run. 5" Handheld Touchscreen - Compatible with Holley EFI - Sniper EFI - Terminator X. Snipers test with success on both Single & Dual-Plane intakes. I’ll start this by saying I’m completely new to the Sniper and computerized EFI world. The Ignition Reference Angle needs to be at least 10° higher than the maximum amount of timing used. This is the original 1979 350ci small-block. Sniper Transmission Controller - Service Unit. If you are using your Sniper EFI System to control timing, navigate to Tuning > Advanced > Advanced Idle > Idle Spark and ensure that the Idle Spark Enabled is set …. once it's restarted it drives as should, until a few minutes later the same problem appears. (Holley EFI Wiring Manual - Figure 22 & 24, Page 35 & 37) May God's grace bless you in the Lord Jesus Christ. It doesn't have a vacuum referenced fuel pressure regulator. 5" TSLCD and the ECU, the ECU is. Sniper EFI Software/Installer v1. In the Sniper manual it shows in all of the different setups that the brown wire is what goes to the tach. The screen opens comparing the Sniper to the laptop, but never finishes comparing. While upgrading I decided, (hopefully not poorly as I am feeling right now), to upgrade to Holley Sniper EFI. Does the thought of wiring your fuel injection setup leave you in a cold sweat? With Holley’s HyperSpark Master Kits, wiring is simplified…all you have to do is plug up the pre-terminated connectors and finish up four wires. This in-tank fuel pump module is a high-pressure unit that flows 255 liters per hour (LPH) and is capable of supporting EFI (electronic fuel injection) engines producing up to 550 horsepower. Holley Sniper EFI 4150 Super Sniper 650 with …. Go to start, won’t crank again. See the “Crank and Cam Sensor” setup in the Holley EFI help instructions on properly setting up the positions of the crank and cam sensors. If this is your first visit, (Holley Sniper EFI Replacement CTS) May God's grace bless you in the Lord Jesus Christ. 2) Leaks at slip joints - some replicas have slip joints between the header flange and the muffler. EMI/RFI will create flashing No Data screens, but it won't shut the unit down and the resets are momentary. Take the SD card to your handheld. I just installed the Sniper with HyperSpark distributor.