holley sniper efi problems

This is great information that can only get you closer to an ideal solution. To say I’m happy with the results is an understatement. I am running a 340 stroker with less than 500 hp. The Sniper EFI calibrates the TPS sensor at every key-on event. My initial idle air/fuel setting was 13.1. It is the most advanced book on the market, a must-have for tuners and calibrators and a valuable resource for anyone who wants to make horsepower with a fuel-injected, electronically controlled engine. Holley just brought EFI within range - introducing Sniper EFI! If you're searching for a leader in reliable, quality restoration of classic muscle car carburetors, then look no farther than the Holley Custom Shop. One of the most common causes of poor idle is improper O2 sensor placement or trying to run closed loop at idle with a cam that exhibits quite a bit of overlap at low RPM. Holley Sniper EFI First Start Up & Setting the IAC adjustmentIn the first video I showed you how to install the complete Holley sniper EFI sytem including th. Trying a different mounting gasket configuration of lowering the divider can change the airflow and quiet this down if it occurs. You think it may be an electrical issue, even though the car ran like a top for 250 miles? Installed Sniper QuadraJet EFI with stock (40 year old) GM HEI ignition. For example, I increased the lean-ness of the idle until I noticed the engine didn’t want to run very well after the initial start-up, and coolant temperatures started climbing irregularly. Blazing across America in their day-glo schoolbus, doped up and deep 'in the pudding', the Pranksters' arrival on the scene - anarchic, exuberant and LSD-infused - would turn on an entire counter-culture, and provide Tom Wolfe with the ... Hi ya, so did a search looking for info on the Holley sniper EFI kit. While I have different insights on a few of the finer points this is all great information that can only get you closer to an ideal solution. How does 14.0 to 14.5 on the highway sound? Remember, this is not a later model Vortech engine with better cylinder heads. TRX350FE Fourtrax Rancher 4x4 ES (2000-2006), TRX350FM Fourtrax Rancher 4x4 (2000-2006), TRX350TE Fourtrax Rancher ES (2000-2006), TRX350TM Fourtrax Rancher (2000-2006) You should then have at least 18-24” of pipe after the sensor. Thoroughly revised and updated, this edition provides accurate technical guidance to understanding and building all popular Ford performance engines. My Bronco with Holley Sniper EFI was running poorly. I started by adjusting the fuel prime – which squirts a small amount of fuel into the intake to aid in start-up. Follow along as we show you how easy it is to configure and install the Sniper Hyper Spark Ignition system. Plug and play compatible with more Holley EFI accessories such as; analog style gauges, shift lights, various modules, and coming soon, 12.3" digital dash support! With over 132 practice tips and more than 100 illustrations, reading this guide is like having a personal shooting coach. This huge technical book teaches techniques of professional trap shooting; singles, handicap and double trap. This happens with some carburetors on dual planes as well. As I would slow down for a stop sign or stop light, the car would run really rough and the idle did not want to come down. Newer Post →, MOUSEBLOCKER protects you from uninsured damage In the original article, I mentioned I was not an EFI expert, but after some simple research - and with the help of the Holley tech line - I was able to inflict some simple adjustments to make the Sniper even better for my application.I started by adjusting the fuel prime - which squirts a small amount of fuel into the intake to aid in start-up. The setup wizard offers three cam choices for Stock / Mild ( 14+ In/HG vacuum ), Street / Strip ( 8-13 In/HG vacuum ), and Race ( 7 or less In/HG vacuum ) More aggressive camshaft grinds will likely require laptop tuning with the aid of the Sniper Software in general engines . Finished installing the Sniper on my 1969 Fairlane a few weeks back. Perhaps you have encountered problems in your Sniper EFI installation and had someone tell you that you have radio frequency (RF) interference issues. A few months have passed, and I am certain you would like to know if it is actually delivering any substantial benefits. First published in 2012. Routledge is an imprint of Taylor & Francis, an informa company. Or could it be the WBO2 sensor? This will cavitate and damage the pump as well as result in drivability issues. PI SpeedShops Canadian Prices, No Duties, 365 Day Return 29,060. But has it gotten any better. Pinched and burnt O2 sensor wiring, keep it high tight and safe, if you short the harness, not only are you likely to damage the sensor you probably just short-circuited your ECU. As with all Workbench titles, this book details and highlights special components, tools, chemicals, and other accessories needed to get the job done right, the first time. The first 250-300 miles were amazing as the Sniper EFI worked flawlessly. Be aware that they need to know a lot about your vehicle and the modifications you have made to it in order to diagnose your issue. Local Time: 11:12 AM. The “at cruise” air/fuel setting I settled on is 16.5. This is the book that Ford FE fans have been looking for. Found insideThis book is dedicated to modeling and application of magnetoelectric (ME) effects in layered and bulk composites based on magnetostrictive and piezoelectric materials. Feed pressure should be knocking on 58 PSI and the return should ideally be zero, if the feed pressure is not correct, or if the return line pressure is greater than 4-5 PSI find and correct the restriction before proceeding. Along with easy of installation and wiring, the new clear cap installation tool makes indexing your distributor a breeze. Part throttle sucking sounds. If replacing the TPS, the TPS sensor is located at the end of the primary throttle shaft, opposite end of the throttle lever. This is one area that too much really is a bad thing. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. You may have to register before you can post: click the register link above to proceed. I am converting my carb to EFI. How did you install the return line to the tank? In How to Build Killer Big-Block Chevy Big-Block Chevy Engines, author Tom Dufur reviews the commonly available factory parts along with many aftermarket offerings, and discusses the advantages of both. Local Speedshops. Many Chevelle owners want to enjoy all the benefits of modern technology as well as the pleasure of driving a classic muscle car. Chevelle Performance Projects: 1964-1972 will offer a full range of performance projects from mild to wild. I also noted that after some time, I could change those values as I saw fit. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! Holley EFI V6 Build 110 Complete File Set - Includes Software/Firmware and all Digital Dash Firmware. As far as a fuel mileage increase? Of course overall if it was a big improvement or not. Found insideThis book will have new information for everyone and will be a must-have for longtime enthusiasts and new owners alike! p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Arial; color: #000000} If you still are having issues with the EFI kit you purchased from us please Contact Us and we'll do our best to help you out. Hey guys, new to the forum and new owner of a Sniper EFI kit, which we just installed on my '71 C30 with a 402 BBC, that I have less than 20 miles on. The weeks following the install saw me slowly increase the air/fuel ratio numbers to lean the system. This caused me to miss my installation window. We will safeguard your e-mail and only send content you request. But wouldn't that have affected driveability from the get-go? History: 1. The Holley Sniper master kit looked good and was packaged well but only came with 20 feet of EFI hose vs the advertised 40 feet. My Bronco with Holley Sniper EFI was running poorly. It’s running great. Free EFI Tuning Software for complete control of your Terminator X power plant. Is the stock GM Powerglide transmission compatible with this set up? Most current pump fuels boil around 130 degrees. Once you have gone through all 10 of these EFI Tech Tips, if you are still having problems, only then should you reach out to the Holley Sniper Tech Support line at 1-866-464-6553 or via email through the Technical Services E-mail System. Holley's EFI Hyper Spark Ignition system is a plug and play system for Sniper EFI. I purchased the Holley sniper from jegs wish I knew you sold them put on my truck got the IAC set haven't checked the -40 idle setting yet my problem is my headers are glowing red called Holley I think I got the worst person seemed to care less Afr is set at 12.8 for idle only thing I have changed I don't smell any fumes at idle someone said I . Usually, deadlines don’t afford me the opportunity to go back and revisit an install I had done months prior. Here are the true stories of people who found their dream cars in the most unlikely places. It’s the ultimate resource for building the ultimate LS-series engine! The Motorbooks Workshop series covers topics that engage and interest car and motorcycle enthusiasts. carb and a mild performance camshaft. Stopped at a gas station to fill up with 93 octane, and when I put it in park, the idle was 1,500. New to the forum and new to Sniper EFI. I have a 69 Camaro with a 350 V8 which has an Edelbrock 4 bbl. I then pulled over and enriched the fuel mixture (lower numbers). History: 1. Find Speedshops Near You. 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As I would slow down for a stop sign or stop light, the car would run really rough and the idle did not want to come down. I went as high as 16.9 and noticed the engine starting to surge. But unfortunately I came up with nothing. Location: Manalapan, NJ. While it may sound odd, it is not a defect and will not cause any drivability issues. They will ask you if you have tried these tips before anything else. If you are having issues with your Sniper Fuel Injection install, go through these common issues first, before getting stuck on hold with Tech Support. I can’t say whether or not I made any major improvements in that area, but I didn’t hurt it either. Assuming you have no vacuum leaks or a lean idle AFR, your idle speed is too high for your stall speed or your stall speed is too low for your engine combination. Installed Sniper QuadraJet EFI with stock (40 year old) GM HEI ignition. If you have any exhaust leaks between the combustion chamber and 18-24” after the sensor you are going to have problems. The "C" designation in front of the series number denoted a two-wheel drive system while a "K" designation indicated a 4-wheel drive setup. Follow up. Holley's EFI Hyper Spark Ignition system is a plug and play system for Sniper EFI. If there is anything you see here that needs clarification please Contact Us. I started out at 13.1. Top 10 Sniper EFI Installation Tips from Holley's Tom Kise, Holley EFI - How To Check For Potential Problems, MOUSEBLOCKER protects you from uninsured damage, The Legendary Rimac “Big Blue” Valve Spring Tester Returns. Privacy and Accessibility. Has anyone installed the Sniper EFI system on a vintage Mopar? Avoid using any 90-degree fittings between the tank and pump. © 2017 Power Automedia. As I would slow down for a stop sign or stop light, the car would run really rough and the idle did not want to come down. And when you do it can seem like nothing is working right. Check Out The Latest Art Morrison Catalog, How Holding A Flashlight For Decades Built One Killer Camaro, This ’66 Chevelle SS396 Is More Than Cool, It’s A Soulshaker, Muscle Car Wiring Harness Updates With Ron Francis Wiring. The Holley Sniper EFI master kit is the most complete EFI fuel system on the market because Holley provides you with everything to completely plumb your fuel system, including 20 feet of 3/8-inch EFI-rated hose, inline fuel pump, post and pre fuel filters, return bulkhead, and all of the necessary fittings and hardware. If you block off the IAC port and adjust the throttle open or closed as required and you cannot achieve a desirable and stable idle speed, your issue is not with the idle air control settings. The learn function will offset the base fuel table until the closed-loop compensation only requires minimal changes. ← Older Post A tube type 90 is equal to adding 3 feet of fuel line between the tank and pump. If you have not already looked into tip #2 you will be hanging up and calling them again. Put an end to cold start issues, hesitations, vapor lock, and flooding. It felt like it was flooding out at low speed, low RPM. check out the. I purchased the Holley sniper from jegs wish I knew you sold them put on my truck got the IAC set haven't checked the -40 idle setting yet my problem is my headers are glowing red called Holley I think I got the worst person seemed to care less Afr is set at 12.8 for idle only thing I have changed I don't smell any fumes at idle someone said I . The Holley EFI 6.86" Pro Dash is customizable with a variety of gauge and indicator screens that can be programmed to display any parameter you need from a Holley EFI system. This is a great time to visually inspect the overall Sniper EFI install. Attempted to make a parts run in my 1990 Third gen Chevy Camaro with a small block chevy 350 with flowmaster mufflers.I believed the issue in this video to b. It felt like it was going to stall out at stop. Not only did the truck drink less fuel, it gained some drivability. Along with easy of installation and wiring, the new clear cap installation tool makes indexing your distributor a breeze. The Gap-FillerThose of us who have followed the development of the Sniper EFI System had identified a gap in the product line some time ago. It's slotted, so install it in the same position. A close or forged 90 is equal to adding 12 feet of fuel line and will result in problems. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. Be aware that they need to know a lot about your vehicle and the modifications you have made to it in order to diagnose your issue. Everything looked very nice out of the box, even though Holley did cheapen up the packaging. Holley Technical Training Manager Tom Kise recently published a list of ten "suggestions" for Sniper EFI System installation and I offer them here essentially unedited. "Covers all major systems & components"--Cover. Car ran fine. The GM Nationals Are Making Plans For For 2022, Are You Ready? Finished installing the Sniper on my 1969 Fairlane a few weeks back. It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! We promise not to use your email address for anything but exclusive updates from the Power Automedia Network.
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