running holley sniper without o2 sensor

What I installed on the motors was the Holley HP 19lb Holley Injectors the Holley 522-198 duel sync distributors with the MSD Digital 6A and the MSD Blaster 2 coils. quick fuel. Wideband Oxygen Sensor Extension Cable. Its the Holley Pro Jection TBI mentioned by the above poster. Here's the pic of the location with my header. The clamp-on that came with mine wasnt a good fit on my 2" pipe. well I have installed the Sniper on my 460 KEM (Ford) marine motor. It flows 850 cfm and can support up to 650 horsepower. I have searched thru the forum as much as I can, with not much luck. Terminator X O2 sensor Off the shelf replacement? Even though you now have the USCG-approved Sniper EFI System as an option for your new EFI System you're not quite out of the woods yet. Im almost at your exact same setup on a Redline 460/Berkeley pump but waiting to pull the trigger on the Sniper until I can pinpoint exactly where I can install the o2 sensor without the wet exhaust damaging it. Holley EFI Usb/Can Harness, Sniper Tbi. Put an end to cold start issues, hesitations, vapor . Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. Price Point: $$, EFI Systems based on Holley's world-class Dominator and HP ECU's. Installing Holley's Sniper EFI Quadrajet System on a 1970 Corvette I will keep the in-line pump for a spare. Full time feedback from the sensor is what the computer uses to refine the fuel table. Install the throttle linkage to the Sniper EFI throttle body. My tune is coincidentally set at 11.5 desired afr, with the failed side as the leanest bank, but the ecu added 15% fuel anyways. It is better to remain silent and be thought a fool than to open one's mouth and remove all doubt. Mark Twain, The goal in life: To die young as late as possible. So there is at least some probability of success. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. Q2. Holley Sniper EFI System is Easy, Budget-Friendly Path to Fuel How To Properly Place and Install an O2 Sensor - Holley A third option would be to run your EFI system without an O2 sensor at all. As I have since added above, the Sniper simply isn't going to be the system to use to tackle this problem. The Holley Super Sniper High Performance EFI kit comes with a coolant temperature sensor and an O2 sensor, both of which must be used for the EFI to work properly. Q1. Most of Holley's EFI systems provide a Setup Wizard that builds a base configuration file that allows you to start the engine and operate the vehicle. Aftermarket headers are pretty much the only safe way to run an O2 sensor. If the indicator reads "LOW Err" double check the connection to the CTS. Welcome to ClassicBroncos! Stock manifolds? I want to register an account for free right now! Tune the delay relay timing to just miss the prime shot.For cold starts, a simple push-button or switch "choke" override to power the relay during prime would provide it. Holley recommends a 3/8" fuel supply line. Make sure to put anti seize on the threads. The Tech Tips and discussions are also great! -- I particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? After a few tries by jumping the starter solenoid I then realized the ignition key was in the off position. They have mods that help. When problem-solving this type of issue, consider when and how you could use a work-around. B/c what it sometimes perceives as a lean spike is actually raw fuel with no oxygen. The very front would be the safest place. 5. running holley sniper without o2 sensor - dowdcreative.com Free ground shipping regardless of order size! Thanks for that, Danny. 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. Classifieds - Engine/Transmission/Transfer Case, BJ42 | FJ43 | BJ44 | FJ45 | FJ45LV | HJ47, North American Clubhouses - Central Region, CA.AB- Rocky Mountain Land Cruiser Association, CO/WY- Horsetooth 4 Wheelers Cruiser Club, TX- Lone Star Land Cruisers - Austin Chapter, TX- The White Trash of the Elwood Chapter, CA.BC- Okanagan-Similkameen Land Cruisers, NV- Battle Born Cruisers of Northern Nevada, Vendors: Accessories - Electronics - Recovery. I just discovered that was the case with my Fitech. To take advantage of all the site features, please take a moment to register. Hopefully this one lasts longer than the original. I would back-burner the ignition control questions until you get the fuel injection working. My spare "Bosch O2 Sensor" came from eBay & was half the price of anywhere else I found. Sensors that are installed in an exhaust must be connected to a properly functioning controller during engine operation Additionally, if an Sniper or Terminator X EFI System has repeated O2 sensor failures and none of the above-listed suggestions seem likely then contact Holley and arrange to have the unit tested. #1. I do believe that the Holley EFI ECU's have the capability to be programmed to work in this application, but have not yet found anyone who has tackled this task and been fully successful.If you (or anyone else) does make some progress on this, please reply here and let us know what works. EFI Swap | Shamrock Boat Owners' Club "Old Yeller" gets Holley EFI Sniper O2 Sensor Installedhttps://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_efi_stealth_4150/sniper_. Restore or update your Holley Sniper EFI System with this WBO2 Sensor 17025 Bosch 554-155 Holley. Search for the cheapest hotel deal for O2 Hotel Taipei Main Station in Taipei City. But you have to get it tuned. Ref: https://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/I heard of the new Sniper EFI from some chatter on OffshoreOnly.com. It is possible for the ECU to have an internal failure that can kill O2 sensors. I only have a stick welder and didn't trust myself on the thin pipe so I brazed it in. May 19, 2021. Everything is included to completely plumb your fuel system including; 20 feet of 3/8" EFI Hose, in-line fuel pump, post and pre fuel filters, return bulkhead, and all of the necessary fittings and hardware. I think I could run more boost but it's a real hand full right now. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Holley Sniper Efi - Mean Chicken Jet Boat Forum I have about 30 hrs on the unit and it just keeps getting smoother with every hr of run time. The bottom line is that trying to run EFI on a marine engine is not something you can do as an afterthought. If this could be disabled it would be much better. Features: . Increasing efficiency is always a good idea. According to AEM Electronics, a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: Additionally, if an Sniper or Terminator X EFI System has repeated O2 sensor failures and none of the above-listed suggestions seem likely then contact Holley and arrange to have the unit tested. However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. I wouldn't say "never", but the last time I asked that specific question I was told it wasn't anywhere on the horizon. Initially I was looking for the upgrade to a 4V holley 4175 carb, but this option has peaked my interest. Other than the constraints provided in the article above I see no reason why this wouldn't be a great upgrade. Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. We also use content and scripts from third parties that may use tracking technologies. Holley Sniper O2 sensor replacement - Club Cobra Can anyone share their experiences with this type of setup? When I went to Holley HP, I found an adapter by Innovate that is designed to draw air out the exhaust stream and away to the O2 sensor. The light shines in the darkness, and the darkness has not overcome it. Items 1 - 21 of 21 Items. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. Master ASE tech since 91. The ones in the Bosch box come without warranty. Holley EFI has the solutions you need to get your project up and running better than ever! Taking a look at the holley manual I am thinking about drilling and tapping the front exhaust port on the log for the O2 sensor. I installed a holley sniper kit. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. I am happy with Holleys no hassle replacement of the parts. I will keep the replacements as spares. As a follow up, I ended up using an eBay type anti fouler elbow for the O2 sensor to try and get it out of the water in the manifolds. Anything else is going to be a frustrating recipe for for failure. With over the transoms you might get away with it if the water is introduced at the very very end, and the O2 is mounted right at the log. a leading manufacturer of aftermarket Wideband O2 sensor kits, the following may damage or destroy oxygen sensors: . Add to Cart . I would send an Email to Chris at EFIsystempro. Sniper EFI Installation Guide. I recommend popping for the Master . Most of you only need to tune 4 points, idling around the marina, part throttle - pulling the rope tight, 1/2-3/4 throttle - cruise, and YeeHaa - WOT. Sniper EFI Releases new Stealth 4150 Models! It needs the tip pointed down at least 10 degrees from horizontal and at least 15 degrees from vertical I prefer about a 45 degree angle from horizontal. Adam. Sorry for the late reply. CUSTOM ART FOR CUSTOM NEEDS. I am concerned about the O2 sensor consideration, but in the end isn't the carburetor situation open loop? Could show a lean condition when in fact it really isn't. The wiring was a bit of a mess. This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. The World's largest Part Number: 510-554-155. Just a rumor. With a bad TPS you will have to manually prime to try and get it . Oops, after that it cranked right up.Idle was set to 950rpm so after the vid was cut off I lowered it to 820rpm and it was purring like a kitten.EFI for dummies. To close this one out, below is a photo of where I installed the O2 bung. CTS (Coolant Temperature Sensor) - Reads engine temperature. To my knowledge, there is no aftermarket EFI fuel system suited to fuel the Sniper EFI system that exists on the market. I'm using the NTK sensor. Has been since the 80's. Fuel economy went from 12.5 to 13.5 gph to 10 gph. I have also installed a sniper system on a 350 Mercruiser and was wondering if you have done any tuning on yours yet? Is Holley working on a complete marine package or planning to in the future? Enter The 2023 LS Fest West Trip Sweepstakes Today And Join Us In Las Vegas! Also some tips on preventing O2 sensor damage May God's grace bless you in the Lord Jesus Christ. Brand: Holley EFI Emission Code: 5: Material: . And who can blame them? Otherwise I have to check for a place in my gasoline tank to put the lines in. But this also makes me wonder what you did for the O2 sensor. It will crank and run great for 2-15 seconds then die. Then they had it repaired and back to me in 5 business days. Most of you only need to tune 4 points, idling around the marina, part throttle - pulling the rope tight, 1/2-3/4 throttle - cruise, and YeeHaa - WOT. Sniper EFI Releases new Stealth 4150 Models! Assuming that your current ignition works well with the marine carburetors it will continue to work well with the Sniper EFI System. Use a return fuel line. In a horizontal or if pointed upwards it can collect exhaust condensation liquids upon start up. I will be calling around to see if I can find someone to help that has experience. If you have any exhaust leaks between the combustion chamber and 18-24" after the sensor you are going to have problems. What I don't want to do is spend more money on the headers than on the fuel injection upgrade and new propeller set. All sensors are tested to ensure they accurately report critical engine data to the . Affiliate. Hello Chris,Ontario's boating season is about to launch for another year.Do you have any good news to add to your above article, any new marine friendly TBI products?In '08,I installed a Holley 21-700 TBI with the o2 mounted in the manifold to Holly specs. The engines are rated at 170 hp each. All of the wiring begins at the throttle body and connects outward from there. I am a competent mechanic and I have checked all the usual suspect items. I wanted to let you all know, I have modified a mercruiser Cool Fuel Gen 3 module(mounted on the engine) to provide fuel to a sniper. While the Sniper has an absolutely outstanding internal ECU, the current model does not offer any laptop programmability. Idle and off-idle performance (particularly as the engine goes into gear.) JavaScript is disabled. I recognize that it would be an absolutely tremendous investment, but based on the overwhelming response we get to this post I am pretty confident that the market is there. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. If you call, they usually let you put in your name and they get back to you. Amazon.com: Holley EFI Wbo2 Sensor, Sniper Tbi : Automotive I installed a holley sniper kit. Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Have you visually verified that all your injectors are spraying? Holley EFI Oxygen Sensor. Register now for free! watch the values in the software for the o2.. once is is done "Heating" and starts to show AFR, wrap the rag round it. #1. Using the correct length carb stud and nuts, tighten the Sniper EFI throttle body down progressively in a "criss-cross" pattern (60-80 in.lbs.). 02 sensors are very heat sensitive, and can detect an exhaust pulsation in a single Header tube, that's why we always wanted to position the sensor into at least 2 opposite firing tubes we running Headers. Holley sniper help!!!! | ClassicBroncos.com Forum My question is concerning what happens a year later, when I have a top-end swap . Most water jacketed header manufacturers (Lightning, CMI, etc) will install 02 bungs in their headers for extra money. However, advanced tuning software is available for the Sniper EFI System that allow them to be tuned by a competent professional with experience tuning marine applications. If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. Ideally I'd want the power plant running as efficiently as possible, but I'd sure like the benefit of EFI over carb. I received my replacement TPS and O2 sensor. Holley Oxygen Sensor O2 Bung Weld-In Style; Larger Image. WBO2 Sensor 17025 Bosch 554-155 Holley - EFISystemPro.com Holley 554-100 NTK Wideband Oxygen Sensor. Even if you are the sort to sort of shrug off safety regulation, consider that if there is an accident that results in a loss and an investigation, failure to follow applicable USCG regulation could result in either financial or legal liability, not to mention the rejection of insurance claims. If you have long tube headers, mount the sensor approximately 6-10" after the collector. There is no problem getting this tuned and then running open loop. Installing Holley Sniper EFI on a daunting, odd-fire V-6: Part 1 Visit their website for more details. I'm 3" down from the bottom of the flange to center of bung. For this you need a system that can be fully programmed to the extent of the Holley ECU's capability. Converting Marine Engines to EFI | EFI Pro Hangout | General Studies Sadly, no. Without the engine running, AFR will read 35.6 The fuel pump will run off a relay in the sniper harness (blue wire) pink wire gets switch/run power to the relay. Howell indicates that this adapter was designed for the Chevy type Mercruiser manifold but that it should work on any similar marine wet manifold. 2 Reviews. It will flood itself out and won't start back, just crank and crank. Newer ECMs have all the options to configure these functions. I took my time soldered every wire connection and routed all the wires carefully to avoid any emt issues. Without Headers Steamers location (above) is perfect, up close to the engine where you . Aug 17, 2013. Part # HM206. For gourmands, night markets not only offer scrumptious small . I will be starting mine up this month, I hope it goes well, good luck to you. I do agree if he can get it tuned prior to fouling he can lock that tune and run in open loop. Holley EFI 534-199 Wideband Oxygen Sensor Extension Cable The fuel module is self contained with water jacket cooling and contains the low and high pressure pumps. This requires a considerable additional investment but as long as you're doing things you're not going to do them half-way, right?

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