Holley Sniper Efi O2 Sensor Problems

Thanks for the search string. I looked into converting to a Sniper as the Mass-Flo efi on my car was fried however, after two speaking to two separate Holley techs neither would guarantee that the SNiper would work properly with the O2 sensor placement. It's designed to be a. I was more wondering about the Sniper specifically which doesn't pull up hardly anything. By fixing this problem, Bosch fundamentally made LSU 4. Holley is sending me a new wideband sensor, no questions asked, and it shipped today. The oxygen sensor mount is a neat design, you drill a larger hole in the outside wall, then a smaller one inside. I've been kicking around different intake systems for the A, you know, 3x2, 2x4, etc. As for Holley horror stories, you can find bad info on everything. We swapped out the carbs for the Holley Sniper and it works great! When I first turn it on it isles perfectly at about 1100 rpms, not sure if that’s New Holley Sniper EFI Idle Problem - Defender Source. Encontrarás artículos nuevos o usados en Holley Performance & Racing Parts en eBay. Holley's Sniper EFI is a true bolt-on improvement that you can do yourself, in your driveway. Solving RF Interference Issues in Sniper Installations. Wideband Oxygen Sensor; Bosch Wideband; For Holley EFI Systems; Two Generations of Family Owned and Operated History. Only 2 components to add, the oxygen sensor and the temperature sensor.

151 posts • Page 6 of 7 • 1. Wideband Oxygen Sensor; Bosch Wideband; For Holley EFI Systems; Two Generations of Family Owned and Operated History. In the early age of e-commerce, a group of enthusiasts strived to find a solution to their problem. I would sugest making sure your fuel delivery is robust and consistent and a good wide and O2 sensor on each bank. Available in Bosch LSU4 and NTK wideband configurations, Holley EFI has the correct sensor for your high performance EFI application. Now the lower cost Holley Sniper advertised for March 31 2016. Just ask google and the internet will give it to you. I have the 30004 600hp power adder model which are around $2K locally but you need to add a fuel system on top of that. Can be plumbed from either side. I works, better than a carb, but not stellar. I just used the stock narrow band O2 sensor but wideband is supported. Check all the pins at the O2 sensor connector and make sure they are all pushed in. jpg The Sniper will control the ignition firing but you need an MSD or Holley Dual Sync distributor to lock out any mechanical advance. 550-510 file photos. No-deal on marine applications. >100 MPH with no problem. ECU is built into the throttle body and has the same configurable setup we used on the 292. will tell you they work best with single plane intake manifolds. Holley Black Ceramic Finish Sniper EFI Self-Tuning Kit.

Wideband Oxygen Sensor; Bosch Wideband; For Holley EFI Systems; Two Generations of Family Owned and Operated History. Envío gratis en artículos seleccionados. EFI Conversion on a 76 PCM 351W. morning and decided to install the O2 sensor. The Fitech systems (and probably their competitors) are dead simple. Especially the latter one, that thermal shock has been the number one enemy of the oxygen sensor all the time. Well, the other day I came across an article on installing a dual tpi set up and I was wondering if anyone here has this set up or knows anyone who does. Carburetor Flange Holley O-ringed inlet threads. So if the engine is suffering from an exhaust leak somewhere (not limited to upstream of the oxygen sensor), the sensor reads that free oxygen as an indication the engine is running lean compared to the target air-fuel ratio. I have been thinking about converting my van to one of the EFI style throttle bodies/injection style set ups such as a MSD Atomic or Holley Sniper set up in the effort to get some better fuel/ increased range out of the van as I am participating in round Australia touring event next year. Estimated lead time is 1-3 weeks. After a few minor problems with the car itself and some minor tweaking , its a beast. If you are required by your state to pass an emissions test, please contact us before ordering. Throttle Body/Power Module/Wide Band O2 Sensor/Handheld Holley Sniper 550-510K EFI Self. A central point of tech info and knowledge from the Holley team and Sniper EFI users. No problem with questions that is how you learn. Ask me I know! On the other hand we just did a Sniper EFI on a 70 Nova with a sweet running 383 that had a decently tuned carb.

Was not the Holley Sniper software it was for a different system. Can be plumbed from either side. holley sniper efi self-tuning fuel injection system part no. Holley Dominator EFI Controller Holley Dominator Engine Management System. Simple Configuration, Installation Made Easy With Plug N' Play PRO Harness And Great Documentation FuelTech FT500 - Hyperaktive Performance Solutions. 5" exhaust, and a Holley 390. 5 PSI Built-in Single stage progressive nitrous control Dry or Wet Nitrous Support. This accessory was developed for mercruiser I/Os to keep an O2 sensor dry in wet exhaust, but I;ve got no experience with it. The systems wont tolerate bad grounds or air leaks that mess with the O2 sensor. Carburetor Flange Holley O-ringed inlet threads. First two pictures are what showed up in the box, one is the Sniper EFI on the left, and the right is the rest of the "master install kit", ie fuel pump, fittings, hose, etc. The MAP sensor is a 2-bar unit to support boosted applications, and the fuel pressure regulator is set to maintain 58 psi at the injectors. This bung location needs to be verified before using it with the Oxygen sensor included in the Sniper EFI system. Lets you choose number of cylinders (4, 6, or 8), displacement, idle speed, and timing control or non-timing control distributor for open or closed looping. FiTech EFI fuel injection is produced by the number one and America's oldest speed shops, Speedway Motors.

So I went with Holley. Top 10 Holley Sniper EFI Tech Tips, Holley Technical Training Manager's top ten "suggestions" for Holley Sniper EFI System installation issues. installed my O2 sensor in the passenger side pipeit's not the recommeded angle but it's been working for for about 1000 miles so far. Holley has been the undisputed leader in fuel systems for over 100 years. En eBay encuentras fabulosas ofertas en Holley Performance & Racing Parts. I would sugest making sure your fuel delivery is robust and consistent and a good wide and O2 sensor on each bank. However, a small percentage (about 10%) runs into this challenging gremlin. will tell you they work best with single plane intake manifolds. Holley Sniper EFI self-tuning fuel injection systems from Holley deliver all the benefits—and none of the hassles. this is not a true statement. The problem occurs when an excessive amount of oxygen makes its way from the intake port directly into the exhaust at idle and low engine speeds because of overlap. Can be plumbed from either side. EZ-EFI Running really rich. 5 PSI Built-in Single stage progressive nitrous control Dry or Wet Nitrous Support. Encontrarás artículos nuevos o usados en Holley Performance & Racing Parts en eBay. 9 Oxygen Sensor please let us know if you have any problems.

A good carb is just as consistent as a good EFI tune. Howell Fuel Injection Kit AMC V8 California Emissions Legal. Sniper EFI Oxygen Sensor. 5 Bar MAP sensor included which safely works on applications up to 21. 1x Oil Temp sensor and 1x AFR O2. These full-featured throttle bodies are easy to install, can support a lot of horsepower, and will keep your budget intact. i have often wondered how good a tune I could get on a carb with wide band O2 sensors to see what is going on. Holley's Sniper EFI is a true bolt-on improvement that you can install yourself in your driveway. O2 sensor, high-pressure fuel pump, plus a $2500 price tag for the system, you would think this would be straightforward and problem free once installed. It ran smoother, idled better, and the only failure I had was an O2 sensor before I sold it in 2010. At Howell EFI, we do not make a one size fits all product line. The folks at F. I bought the "master kit" came with fuel pump filters and hose in addition to the throttle body coolant temp sensor and Oxygen sensor. This sensor is a direct replacement for Holley HP, Dominator, Avenger and Terminator EFI systems. The systems wont tolerate bad grounds or air leaks that mess with the O2 sensor. EFI won't fix those problems and you will drive yourself nuts trying to "tune" out an engine issue. This free oxygen is picked up by the O 2 sensor and determined to be indicative of a lean AFR condition when, in reality, the engine could potentially be running slightly rich. Sniper EFI's new billet aluminum throttle bodies are designed as a direct fit for the Fabricated Race intake manifolds. 2 and the smell has completely.

and an oxygen sensor with a clamp-on mount. Holley Super Sniper EFI Makes Up To 1 , 250 HP For Just $ 1 , 500 Holley ’s Sniper EFI line of throttle body electronic fuel injection systems are designed to be budget-minded carburetor replacement solutions. I have a 1970 Mach 1 Mustang I am fitting a Holley Sniper EFI to. It's designed to be a. You also need 18+ inches of exhaust past the oxygen sensor for proper readings. Holley just brought EFI within range! Introducing Sniper EFI! 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!. Replacement Bosch Wideband Oxygen sensor for Sniper EFI Systems. With fuel and exhaust done, I dropped the throttle body in place, connected fuel and linkage and dug into the wiring. The included Holley Sniper system also comes with a handheld LCD touchscreen so you can input startup information as well as monitor engine information using the digital gauges on the unit. The problem. Howell Engine Developments, Inc. Problem is I have no way of testing the wiring. The EFI team at Holley has designed the perfect solution for your problems. Entry level self-tuning EFI systems were basically designed to replace four-barrel carburetors on naturally aspirated engines. Marine EFI systems are built to different standards, since it's difficult to walk away from a fire. This manual contains the information necessary for the installation of the throttle body, wiring, sensors, and fuel system. We then label each set of sensor leads.

Part 2 will go over what those new parts will be feeding. Was not the Holley Sniper software it was for a different system. EZ-EFI Running really rich. The domestic aftermarket performance world has been abuzz about the latest low-cost EFI systems, one of which is Holley's new Sniper EFI. Dual Quad! EFI! Nothing says Muscle like 2 big 4 BBL's on a V8. With my o2 sensor in closed loop my cruise driveabilty is poor. The engine is a turbocharged 363 custom small block Ford. Top 10 Holley Sniper EFI Tech Tips, Holley Technical Training Manager's top ten "suggestions" for Holley Sniper EFI System installation issues. Please take caution that leaded gasoline will prematurely kill the oxygen sensor. The temperature sensor needs to be installed anywhere but in the thermostat housing, in the intake, head or block. No-deal on marine applications. Call if you really want to know. Holley Sniper EFI. Factory Refurbished carbs have undergone a thorough inspection. Of course overall if it was a big improvement or not.

Holley Sniper EFI self-tuning fuel injection systems from Holley deliver all the benefits—and none of the hassles. EFI won't fix those problems and you will drive yourself nuts trying to "tune" out an engine issue. We installed and ran all three units on a ’66 Biscayne wagon that has a very basic small-block Chevy in it. When the Holley Sniper EFI system was revealed at SEMA 2015, I knew I had to have it. I assume you checked out the holley efi sniper forum. I'm sick and tired of carb and carb related inconsistencies and V A P O R L O C K in the mountains. Engine makes 490 at the rear wheels. Dual Quad! EFI! Nothing says Muscle like 2 big 4 BBL's on a V8. My problems. What other comparable systems? Uncanny how Holley is about to unveil their version and one could not tell the difference between them if their name was substituted on the throttle body. I am new to this site. Is this a viable upgrade for my boat?. I don't think the thermoquad without vacuum advance with a distributor pulling vacuum of the manifold was a good setup. Please try your search again later. Wide band O2 sensor, water temp, and power is pretty much all you need to hook up. The FAST EZ-EFI engine management system is very advanced with real-time data logging and wideband O2 sensor feedback, so they now make it possible to retrofit your lower-technology factory style Ford EEC-IV or GM EFI system to these new units. Each Sensor is hand calibrated to insure accurate readings when used in conjunction with your Holley EFI system. Hey everyone, As some of you know, I modified my 300 with an Offenhauser DP intake, EFI manifolds, 2. 9 Wideband Oxygen Sensor provides real-time Fuel Map Learn! After reading. Can be plumbed from either side.

Dominator® EFI Vehicle Management Systems are intended for all engine applications, from street to unlimited high-end racing applications. All of the wiring begins at the throttle body and connects outward from there. Holley Super Sniper EFI Makes Up To 1 , 250 HP For Just $ 1 , 500 Holley ’s Sniper EFI line of throttle body electronic fuel injection systems are designed to be budget-minded carburetor replacement solutions. ECU is built into the throttle body and has the same configurable setup we used on the 292. I was more wondering about the Sniper specifically which doesn't pull up hardly anything. Wide band O2 sensor, water temp, and power is pretty much all you need to hook up. A lot of times on the water cooled exhaust the temp is low on the sensor changing the resistance causing the sensor to read off a percentage. Holley (820042): Sniper EFI Sheet Metal Intake Manifold For those looking for a budget-friendly yet durable intake manifold, the new Sniper EFI sheet metal-fabricated manifold from Holley is suitable for LS, small block Chevy, and small block Ford applications. O2 Sensor Mounting: The O2 needs to be mounted 6-8” after the merge in the header collector. I think that was some of the problem of her never running well. It gets about 19 mpg in my driving which includes highway at 80mph and around town. If I had to guess, either you have a too large throttle body, or, O2 isn't working, or Temp sender is bad. EZ-EFI Running really rich. Watch the video to learn more. 9:1 AFR, but 20. Just ask google and the internet will give it to you. The car has a Chevy 383, roller cam, roller rockers, headers, aluminum heads, and I'm running a Edelbrock Performer RPM dual plane intake and the car runs very good. Check all the pins at the O2 sensor connector and make sure they are all pushed in. I looked into converting to a Sniper as the Mass-Flo efi on my car was fried however, after two speaking to two separate Holley techs neither would guarantee that the SNiper would work properly with the O2 sensor placement. The instructions recommend at least 18" between.

Holley Sniper; Holley HP; THat is not typical with EFI because of where to mount the O2 sensor. Holley just brought EFI within range! Introducing Sniper EFI! 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!. My 67 Rambler project will be fuel injected. This kit contains everything you need to set your sensor straight. There are known issues with the system such as the "high idle" but it is an easy fix. The engine is a turbocharged 363 custom small block Ford. 550-511 file photos. The MPS Weeded and Labeled Holley EFI Harness (p/n 1-0676) gives you a great start to a custom harness. Just released is a small 2 barrel Holley Sniper EFI Throttle Body for the 6 cylinder Jeep. Holley Sniper EFI owners and Tech has 8,005 members. You should be able to take your 360 to any Chevy dealer and plug in the Tech1 scanner (which is obsolete, by today's standard) and do a complete diagnosis of your system. 5" exhaust, and a Holley 390. How Does an O2 Sensor Work. You're right that the O2 sensor may be the problem if you can't change your AFR setting to. With the Holley and FiTech you would have to modify the throttle arm to clear the intake plus they are just square bolt pattern so you kinda have to use a spacer anyway. Again, I ordered the Holley Sniper EFI 2300 Two-Barrel kit (550-849K) and nothing else. Holley supplies a clamp-on bung but I didn't have any straight pipe to do it.

I believe the Sniper is the old MSD system with some changes. 2 wide band O2 sensor while all other sensors are easily replaceable GM style parts! The ECU is mounted on the throttle body so there is NO external boxes or harnesses to clutter up your VW engine compartment. Problem is I have no way of testing the wiring. and an oxygen sensor with a clamp-on mount. With the Holley and FiTech you would have to modify the throttle arm to clear the intake plus they are just square bolt pattern so you kinda have to use a spacer anyway. EFI won't fix those problems and you will drive yourself nuts trying to "tune" out an engine issue. As for Holley horror stories, you can find bad info on everything. wideband o2 sensor, holley efi. Top 10 Holley Sniper EFI Tech Tips, Holley Technical Training Manager's top ten "suggestions" for Holley Sniper EFI System installation issues. I'm sick and tired of carb and carb related inconsistencies and V A P O R L O C K in the mountains. will tell you they work best with single plane intake manifolds. Holley just brought EFI within range! Introducing Sniper EFI! 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!. Made the change from BS3 to Holley EFI with COP for my turbo/methonal Sbf and the results are nothin g less than amazingtotal integration of efi, ignition, data logging and traction management. I chopped it up and TIG welded it on. Can be plumbed from either side.

I bought the kit with the fuel pump, fuel lines, and etc. So I went with Holley. Holley Sniper EFI Planning and look and still favoring Holley above all else with this problem: 2 month backlog. NOTE : Fuel pressure should be checked on the inlet fuel line before initial start up during the fuel pump prime. Holley Dominator EFI Controller Holley Dominator Engine Management System. For those not wanting to deal with the potential quirks of a carburetor, this is the way to go. There are lots of options out there on the market for these. The display/controller had the wrong software loaded in it. 1x Oil Temp sensor and 1x AFR O2. Can be plumbed from either side. This aftermarket kit consists of a carburetor spacer plate with a fuel block, a fuel injector, an ECU and a wide band O2 sensor. Holley Sniper EFI with fuel kit (I purchased the fuel line kit even though I had the internal fuel pump TIP: I found it cheeper to get the 20 feet of high quality fuel lines, fittings, filters, and hose clamps than it would be to buy it separately) I plan to try and sell the external electric fuel pump to recoup some of the additional cost. Details about Holley EFI 554-155 Oxygen Sensor for Sniper please let us know if you have any problems with. Simple Configuration, Installation Made Easy With Plug N' Play PRO Harness And Great Documentation FuelTech FT500 - Hyperaktive Performance Solutions. The problem occurs when an excessive amount of oxygen makes its way from the intake port directly into the exhaust at idle and low engine speeds because of overlap.

The problem occurs when an excessive amount of oxygen makes its way from the intake port directly into the exhaust at idle and low engine speeds because of overlap. Special manifolds exist to accommodate O2 sensors, but many older marine applications are simply run open circuit without sensor input. Automotive Holley Sniper EFI 550-866K Holley Sniper EFI 2GC Small Bore Master Kit - Classic Gold Finish. I blamed the EFI and didn't really feel like refreshing my memory and skills on that system and had been reading a lot about the FiTech that had been out about a year at the time. I would sugest making sure your fuel delivery is robust and consistent and a good wide and O2 sensor on each bank. Entry level self-tuning EFI systems were basically designed to replace four-barrel carburetors on naturally aspirated engines. PART# 554-155 Be the first to write a review. Re: HOLLEY SNIPER EFI TUNING tips, info sharing, ideas, settings, etc. Although as far as I can tell, the only difference between the marine and auto kit is the flame arrestor. HOLLEY PERFORMANCE 554-101 Wideband Oxygen Sensor - $256. Sniper EFI four fuel injector kits can support up to 650 HP. The passion for cars and going fast starts early. Estimated lead time is 1-3 weeks. As for Holley horror stories, you can find bad info on everything. Top 10 Holley Sniper EFI Tech Tips, Holley Technical Training Manager's top ten "suggestions" for Holley Sniper EFI System installation issues. Couldn't find any problems with the sniper efi system however just don't want you to have expectations etc and this not be your answer. wideband o2 sensor, holley efi. Classic Industries offers a wide selection of EFI Conversion Kits for your 1965 Ford Mustang.

We then label each set of sensor leads. With the Holley and FiTech you would have to modify the throttle arm to clear the intake plus they are just square bolt pattern so you kinda have to use a spacer anyway. Installing the Holley Sniper EFI Kit February 24, 2017 Mike Aguilar Fuel Delivery , Galleries , How-To and Tech Tips , News , Slideshow 1 Click Here to Begin Slideshow I've been a Holley fan since I could say the word "carburetor" correctly, so it's no surprise when I say that one of my favorite manufacturers of electronic fuel. FiTech EFI systems use a Manifold Absolute Pressure (MAP) sensor to read vacuum of the engine, and with this information, we can calculate the load of the engine. Oxygen Sensor for Sniper EFI or Terminator X Systems. Only 2 components to add, the oxygen sensor and the temperature sensor. I bought the "master kit" came with fuel pump filters and hose in addition to the throttle body coolant temp sensor and Oxygen sensor. Thoughts on. The Sniper EFI System comes with a built in fuel pressure regulator, factory set at 58. The folks at F. Bosch wide-band o2 sensor provides precise air/fuel readings allowing EZ-EFI exceptional tuning accuracy; Holley-style throttle linkage & 4150 bolt pattern allow for direct replacement of Holley 4 barrell carbs; 1100 CFM 4 bbl EFI design allows for responsive low end w/ good drivability & support of up to 650 HP. It ran smoother, idled better, and the only failure I had was an O2 sensor before I sold it in 2010. 2 wide band O2 sensor while all other sensors are easily replaceable GM style parts! The ECU is mounted on the throttle body so there is NO external boxes or harnesses to clutter up your VW engine compartment. 9:1 AFR, but 20. The Holley Terminator EFI comes. However, a small percentage (about 10%) runs into this challenging gremlin. 73 K5 Blazer with a built 350, 375 HP, 425 Tq. For the hot start issue, they suggested it could be a bad O2 sensor.

Note!

It just assumes the other bank is acting exactly like the one it is monitoring if you have dual exhaust.

The Wait is Over. So, sadly, it is not CARB certified. I am new to this site. This kit includes an ECU, wiring harness, fuel injectors, fuel pump kit and throttle body. Post a reply. There are many others that will do the same thing but the 1227747 is most well known and documented and will be the basis for this article. Fuel and Air Systems 40 and the O2 sensor changes to heating when it turns itself off voltage stays steady. Cutting Edge EFI Technology!. The FAST EZ-EFI engine management system is very advanced with real-time data logging and wideband O2 sensor feedback, so they now make it possible to retrofit your lower-technology factory style Ford EEC-IV or GM EFI system to these new units. Classic Industries offers 1965 Ford Mustang MSD Atomic EFI Master Set, 1965 Ford Mustang Atomic EFI Throttle Body Kit, 1965 Ford Mustang MSD Atomic EFI Standard Fuel Set, 1965 Ford Mustang FAST Precision Flow Fuel Injector Set, 1965 Ford Mustang Throttle. Since the camshaft dictates so much of the running characteristics of an engine, camshaft consideration when choosing EFI is equally important. if you have a 5 wire heated O2 sensor with long tube headers you should be ok. Oxygen Sensor for Sniper EFI or Terminator X Systems. Holley being reallt slow at getting back to me. I was running a Demon 750 carburetor but I felt I took that as far as I could go. FITECH FUEL INJECTION 30002 Go EFI 4- 600 HP System Matte Black Throttle Body - $1,331. Holley is sending me a new wideband sensor, no questions asked, and it shipped today. To deliver a fair and unbiased report on why the owner of this classic Bronco wanted to replace the Holley Sniper TBI unit with an Edelbrock Pro-Flo 4 EFI, we referred to both the owner of the vehicle as well as the builder, Gateway Bronco. Holley Sniper Efi O2 Sensor Problems.

Item Explanation Item Explanation
If it's your first experience with EFI it's good to learn with but it's no comparison to something like a Haltech or Holley (non-sniper) and it is a compromise compared to multipoint. EFI won't fix those problems and you will drive yourself nuts trying to "tune" out an engine issue. The Power Adder versions of the FiTech EFI system will handle up to 25 LBS of boost and can be used for any application. TBI Fuel Injection Conversion using a GM TBI EFI system! One of the most popular EFI conversions to older Chevy engines or any engine for that matter is the GM TBI system using the 1227747 ECM.
I would sugest making sure your fuel delivery is robust and consistent and a good wide and O2 sensor on each bank. EFI computers can compensate for all of those and be spot on all the time. So, sadly, it is not CARB certified. This bung location needs to be verified before using it with the Oxygen sensor included in the Sniper EFI system. 1x Oil Temp sensor and 1x AFR O2. All of the wiring begins at the throttle body and connects outward from there. A friend of mine has been running an FiTech Go Street 600 EFI system only a pretty hot 383 for around 3 years now. Introducing Holley Super Sniper EFI! Looking to convert your blow thru carbureted turbo engine to EFI˝ Look no further than Holley for the Super Sniper 4150 EFI systems featuring 8,100LB/HR Fuel Injectors capable of supporting up to 1250 HP on forced induction or dry nitrous applications. I am new to this site. The Fitech supposedly blows and there has been issues. Did we mention the Super Sniper also has full nitrous control built-in? That’s right, no need for a separate nitrous controller!. (Words and photos by Mike Brooks) – Part 1 in this series of articles covered the install of the new fuel system in the truck. I did read a bunch about the Holley HP system that answered a bunch of my questions specifically how to mount an O2 sensor, fuel system set up tuning and so on. Attachment 37953 Since the muffler was out, I finally had a chance to re-skin it. If I were to do it different I'd do the full GM set-up. So if the engine is suffering from an exhaust leak somewhere (not limited to upstream of the oxygen sensor), the sensor reads that free oxygen as an indication the engine is running lean compared to the target air-fuel ratio. morning and decided to install the O2 sensor. How Does an O2 Sensor Work. Holley apparently moved the date to sometime in september.