. 534-199. 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. Increasing efficiency is always a good idea. Does an yone have a pic of the O2 sensor in their exhaust? Idle and off-idle performance (particularly as the engine goes into gear.) Spray a rag down pretty good with brake cleaner. Note, that is not a crack in the exhaust manifold, just a shadow from a casting flaw. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. Next, the new unit was installed onto the manifold. The adapter will be fastened in both metal parts so that no water will reach the O2 sensor. Holley has a pump almost identical in size to the OEM pump and it's not difficult to change. Aftermarket headers are pretty much the only safe way to run an O2 sensor. EFI System Pro had everything I needed for my EFI upgrade. There can be leftover debris from manufacturing that have been washed down and are now clogging one. George Place the Sniper EFI throttle body on top of the new flange gasket on the manifold. 74 FJ40 confined to the swamp. . By Joshua C on August 10, 2021 | Verified Owner, Worked right out of the box. A replacement clamp on would be an easy change out. Oxygen (O2) Sensor - Is an electronic device that measures the proportion of oxygen (O2) in the exhaust gas. Much of the system is encased right inside the throttle bodyand that includes the ECU. Only show this user. These types of adjustable on-delay timer relays are on sites like Amazon for less than $10 up to $15. We Test It: Holley's New Sniper EFI - MotorTrend I received my replacement TPS and O2 sensor. But you have to get it tuned. What you are able to accomplish with a Sniper is done exclusively through the setup wizard application on the 3.5-inch handheld.The Temrinator is designed to be set up with it's own setup wizard on the same 3.5-inch handheld display--but since it has a stand-alone ECU, it can also be fully programmed via the Holley laptop software. I am interested in upgrading both engines with Pertronix Ignitor or Ignitor II ignition and the Holley Sniper EFI 2300 and the Howell EFI marine O2 sensor adapter. Right now I'm just using the AEM Wideband sensor to monitor Air/Fuel ratio but hope to use it in an EFI system soon. This really applies to any O2 sensor regardless of EFI system. If you have any exhaust leaks between the combustion chamber and 18-24" after the sensor you are going to have problems. I have searched thru the forum as much as I can, with not much luck. Never tried it myself or know anyone fwho has, but Little kids play hooky . big kids play. It works great where its at. 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. Will I be able to control my ignition timing with the Sniper? Any exhaust down at engine level or lower will definitely get at LEAST some steam. Fuel prices at the marina are usually about a dollar a gallon more than at the local Racetrac/Wawa/wherever, and even more if you wisely opt for ethanol-free fuel. O2 sensor placement is critical for getting your engine to read the oxygen in the exhaust correctly and can directly impact the performance of your new EFI installation. What exhausts are the best? I will let you know what happens. I thought the clamp on style mount was a good idea in case the threads got buggered up when a sensor change might occur, and the threads are rusted up by then. O2 Sensor in a boat exhaust | Performance Boats Forum I stopped by Bergeron on my way back to the lake, and he said they have never found a good way to run O2 sensors in a marine exhaust. The wide band O2 sensor is required for initial running and calibration. Holley EFI Oxygen Sensor. The adapter does require the removal of the manifold and some machining but it allows the O2 sensor to be placed into the exhaust flow but protects it from the water exiting the block. How To Properly Place and Install an O2 Sensor - Holley If the indicator reads "LOW Err" double check the connection to the CTS. Terminator X O2 sensor Off the shelf replacement? Runs like a champ now. Thinking about this I think this will work very fine! Without Headers Steamers location (above) is perfect, up close to the engine where you . Previously, none of Holley's throttle body injection (TBI) systems, such as the Terminator EFI were USCG approved (even though the HP and Dominaor ECU's themselves are.) Most water jacketed header manufacturers (Lightning, CMI, etc) will install 02 bungs in their headers for extra money. blue doberman puppies. It doesn't even mean that you can't do it. functioning controller during engine operation. Restore | Make | Philosophize | Eat | Drink | Be Happy | Let's Go Brandon! Anybody got a good 270hp 350 tune yet?I installed sniper efi on my boat runs good but feel like the wot should be better need to get the sniper controlling spark is my thoughts the old thunderbolt is either not great or timing wasn't right when I bought the boat but she runs great I just think this engine has more in it then I'm getting out of it at this time any tuning and timing advice would be great considering I'm awesome with carb n hei diet but new to efi and boat timing curve but not an idiot so I say. Oxygen Sensor is sold separately.Adaptor should be installed in a flat area of riser at least 6 before water blends with exhaust. It just means that if you are thinking you'll install this, crank it, and pull away from the dock with complete success you might be in for some disappointment. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. The truck started fine after install, and ran down the road ok. Sniper EFI 4bbl Marine. Conditions when closed loop o2 should be turned off. These often don't work with stock ECUs, so your best bet is to weld in a second bung for the wideband sensor. Thanks for the heads up. Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. (REGISTERED USERS DO NOT SEE THIS POST/AD! Advanced throttle body injection systems capable of transmission control and more. Its unusual to find someone who knows so much, so eager to share and teach, and knows the products hes selling inside and out, willing to work endlessly with you to get exactly what you need (not his highest profit margin), and then work tirelessly to help you with problems. It does this every time..when you start a warmed up engine, its too rich and starts poorly without throttle. You will need an O2 sensor to measure fuel needs, but it could be tuned manually like in the old days. Have to replace head gasket. Troubleshooting Holley Sniper that hesitates on acceleration As I have since added above, the Sniper simply isn't going to be the system to use to tackle this problem. He also explains how to properly install them. Sniper EFI Quadrajet Marine. What Is Pinion Offset, And How Does That Affect You? Free Shipping - Holley Sniper EFI Oxygen Sensors with qualifying orders of $99. 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. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more! Holley sniper efi error 21 - bqfoki.lesthetiquecusago.it All sensors are tested to ensure they accurately report critical engine data to the . Finally, do you also recognize that the self-tuning feature of the Sniper EFI may not result in an acceptable configuration for your boat and, as such, may require you to seek professional tuning? If a cruiser with enclosed engine compartment, not a lot you can do to eliminate water or at least water vapor in the exhaust. One comes in the form of a Marine O2 Sensor Adapter from the folks at Howell EFI. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Description. The latest is the new Holley Sniper EFI touted as a true bolt-on self-learning carb replacement. Essentially, when I push the clutch in and ease on the brakes to coast up to a stop light, the AFR goes lean (18:1 or so) and the engine stalls. Yellow Cold! 92 YJ 4.0, AX-15 5spd, np231, dana 30 front, dana 35 rear. Holley recommends a 3/8" fuel supply line. This is the 02 sensor adapter I used. If you let it cool down again, does it start up fine? To take advantage of all the site features, please take a moment to register. The Fora platform includes forum software by XenForo. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. I was thinking aluminum heads would run it up closer to 5,000 rpm. I installed a holley sniper kit. I had a blue wire coming out of the firewall that met this need, but it was already hooked-up to the + side of the coil and the Duraspark box. I bought a new holley sniper , dual sync dist., coil, and holley in tank fuel pump, When engine got hot it would go crazy. Put an end to cold start issues, hesitations, vapor . But MAP sensors are very easy to physically implement and are inexpensive. FWIW, I called Holley to confirm the part number and they say the Bosch part number if 17212 (also available on Amazon for $64.78). Everything about the fuel prime shot can be adjusted. Has anyone run an O2 sensor in an EFI on a marine engine? Thanks guys. Could show a lean condition when in fact it really isn't. 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.). Here's the pic of the location with my header. 100% identical. I will be starting mine up this month, I hope it goes well, good luck to you. Maybe this one has a shorter cable? For gourmands, night markets not only offer scrumptious small . By bypassing the built in pressure regulator in the fuel module(allowing full flow and pressure), using 3/8 hard lines to/from the sniper to meet CG rules( no soft lines on the engine block)using the snipers fuel pressure regulator, This is as close as I can come to safe. I have also picked up another .5 gallons per hr to about 9.25 gph. It would cost considerably more but a second option that would have added performance benefits would be to switch to a dry manifld such as the headers available from Custom Marine, Inc. Sniper throttle body linkage opens all four barrels evenly when you depress the throttle. Q3. Brand: Holley EFI Emission Code: 4 . 2 Reviews. holley efi. The included fuel system places a 340LPH fuel pump in the tank, which can easily be . The throttle body has a built in fuel pressure regulator set at 58.5 psi. I am a competent mechanic and I have checked all the usual suspect items. I found this in the instruction manual for the older commander 950 system. Prime cannot be adjusted on this old unit. This runs in the area of $1000 and has everything you need for a basic install on almost any vehicle equipped with a four barrel carb. I have tried several different settings to get it going, no luck. Purely coincidence about the '2300' number. You have to one big hole in the riser, then you reach the cooling water, and one little hole in the next part of metal: now you reach the exhaust gasses. Or maybe I could just use a piece of spare/junk exhaust tubing, and bolt it to the manifolds and add a weldless O2 bung to it. Then if you are do you just wire the o2 sensors in parallel or do these EFI kits have inputs for more than one sensor. Some parts are not legal for use in California or other states with similar regulations. O2 sensor failure on a Holley Sniper EFI - YouTube Free ground shipping regardless of order size! WBO2 Sensor 17025 Bosch 554-155 Holley - EFISystemPro.com It only runs rich on start up for a second due to the prime, after start it runs great. The basic kit comes with the TBI unit, touchscreen controller, water temperature sensor, a wideband oxygen sensor, and all the necessary wiring. I have not yet got it figured out. For this you need a system that can be fully programmed to the extent of the Holley ECU's capability. The Tech Tips and discussions are also great! I'm having new headers with an O2 sensor bung installed in my car ('79 Vette) soon, to prepare for a Holley Sniper EFI TBI install this winter. Part# 554-155. holley efi. This fixed the high throttle position sensor reading (TPS) of above 1% that likely caused my idle issues. It should be pretty straight forward what each of these values do. Part # HM206. #HM206 - ADAPTOR, O2 SENSOR for Marine use - Howell EFI Conversion the motor has the following mods, Aluminum heads, Performer intake, Sniper and MSD ignition module. Plug into the coolant temperature sensor. It has about 18 hrs to date and is working great. suspect bad o2 sensor with Holley efi | Yellow Bullet Forums Top 10 Holley Sniper EFI Tech Tips Holley Technical Training Manager Tom Kise's top ten "suggestions" for Holley Sniper EFI System installation issues. Once the tune is complete, the O2 sensor can be defeated or . The target A/F value based on load or MAF cfm, and engine speed. Then they had it repaired and back to me in 5 business days. I have installed the Holley hp efi MPFI on my twin inboard mercruiser 350ci 270 hp. Sniper EFI 2300 Marine. Sort. In order to do this, it heavily relies on proper O2 sensor placement. Boats don't cruise at 60mph up and down hills. But it is going to be a little tricky. . Find a lower price anywhere and we'll beat it by 5%! Holley sniper help!!!! | ClassicBroncos.com Forum Menu. Once you have those points set, the rest of the map doesn't really matter, just make it look smooth/pretty and everything will be fine. Holley EFI 534-199 Wideband Oxygen Sensor Extension Cable Holley EFI Oxygen Sensor. Incense-veiled temples with exquisite carvings and paintings dating back to dynastic times blend seamlessly in streets of the modern city. I installed a holley sniper kit. . Let him re-jet the carb (a wee bit on the fat side for safety) and reset the timing and try again. THen you have to determine if you want 02 readings from one cylinder, or in the case you just mentioned mostly one cylinder, average of 4 cylinders on one bank or the other, or average of all 8 cylinders. Master ASE tech since 91. Seems to LEARN much faster than the Fitech did. Holley 554-100 NTK Wideband Oxygen Sensor. 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. I installed it without O2 sensor, adjust on the fly. I had the pink ecu signal wire connected to a bullet connector on the passenger side . I am in the middle of a repower of twin BBC 481, mild cam which will need to be recarbureted. You must log in or register to reply here. To my knowledge, there is no aftermarket EFI fuel system suited to fuel the Sniper EFI system that exists on the market. Fuel economy went from 12.5 to 13.5 gph to 10 gph. Holley Sniper EFI Wideband Oxygen Sensor. Sep 14, 2021. When the Sniper EFI System received USCG approval at the end of 2018 this presented some hope for boat owners. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. Jan 20, 2019. PRO's: Wideband O2 sensor harness is longer, allowing easier connection and routing. But this also makes me wonder what you did for the O2 sensor. Ideally I'd want the power plant running as efficiently as possible, but I'd sure like the benefit of EFI over carb. YES! In this case, the prime shot is good for cold, but too much for warm. This was for MPFI. Holley Sniper EFI System is Easy, Budget-Friendly Path to Fuel If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. Stock manifolds? I have a 74 bronco, 302, mild cam. 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. No matter what I do, it will not start. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle, By Corey A on June 4, 2021 | Verified Owner. I've dunked mine lots of times. After a few tries by jumping the starter solenoid I then realized the ignition key was in the off position. The reason I say this is that nowhere in this discussion is the fact that none of these systems are are handling the timing on the fly. I have searched thru the forum as much as I can, with not much luck. non biased Shelby Cobra related site! Oxygen Sensor, Replacement, Sniper EFI, Terminator X, 3-wire, Thread-in, Each See More Specifications | Check the Fit. Can more detail be provided? The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. https://www.efisystempro.com/efi-pro-hangout/sniper-installation-tips-holley-tom-kise, https://www.efisystempro.com/efi-prng-engine-startup-sniper-terminator-x-stealth. 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. This product works with Holley EFI wideband oxygen sensors, part numbers 554-100 and 554-101. Precisely Adam. Go to the web site and it will explain the installation it is very simple and works well.As for the rpm you are comparing to completely different animals (pumps). Followed all the instructions to the letter. If you have a manual tranny starting off without squealing the tires can be tricky because all four barrels open up at the same time. EFI System Pro also has a good bit of tech info on their website. Specs. Installing Holley Sniper EFI on a daunting, odd-fire V-6: Part 1 well I have installed the Sniper on my 460 KEM (Ford) marine motor. Anyone have a good place to find a genuine Bosch O2 replacement sensor without paying $110? I myself will convert my 2 302's (Volvo Penta 5.0 l AQ231A) from carbs to EFI; I must find out everything before I start work on the engines, then I am satisfied to start. 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. Note that this is a different sensor than Holley uses for their Dominator/HP/Terminator/Avenger series. I hope that the next F/2F header is more O2 sensor friendly. . Is this a viable upgrade for my boat? This boat has a non-vortech motor with a 2 bbl gm intake i'll need to replace. No, use only one 02 sensor, mounted close to exhaust manifold, or high up on a Header collector, not into a single Header pipe that merely gets a exhaust pulsation. However, overcoming that whole idle/off-idle transition (mentioned above) is going to be the challenge. In this video Holley's own Tom Kise explains oxygen sensors and where to place an 02 sensor bung in your exhaust. The original Holley Sniper instructions are available on the Holley website if you have misplaced them. From time to time we receive phone calls from individuals who are interested in converting their carbureted boat motor to fuel injection. Staff Writer. But you've found the right one for your Holley Sniper EFI System OR your Terminator X EFI System. USCG approval is certainly worth careful consideration, as being on a boat that catches on fire is even more serious than being in a car that catches on fire. This combines the Sniper EFI Self Learning Throttle Body, with an easy to install In-Tank Retrofit Returnless Module, 20 ft of Earl's Vapor Guard Fuel Hose, and the required fittings. In the case of the car, you can generally get out and walk (run?) Add to Cart . :-), I started using OMC and Volvo Penta pumps for my conversion. OP, the Edelbrock system looks to use the same basic sensors as the Holley sniper system: TPS, MAP and O2, plus a few supporting sensors. (probably with the edelbrock marine 2506 intake). CTS (Coolant Temperature Sensor) - Reads engine temperature. $5 Off Your $100 Mobile App Purchase . Yeah, it may sound hokey to some, but is just one option to solve the issue where you are and with what you have. check out the. Holley Sniper Marine EFI | Bloodydecks Aug 17, 2013. Holley sent him a new one for free. *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages. : For registered members this ad will NOT show. 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. All of the wiring begins at the throttle body and connects outward from there. Price Point: $$$. Everyone else was backordered several months. Holley EFI Sniper O2 Sensor Install - YouTube So far so good. Brass adaptor designed to install heated oxygen sensor in water-cooled marine exhaust risers. Product Q&A . This is made by Innovate, the guy that runs the Holley EFI forum HIGHLY recomends AND uses them himself, I use them, my o2 on my wideband Innovate, kept going bad, a 4.2 Bosch o2, put this on both my Holley HP NTK sensor & the wide band, been 2 years now & lots of driving, all good, Heat-Sink Bung Extender (HBX-1) - P/N: 37290 The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. Customer Rating: 4.3 out of 5 stars: 4.5 out of 5 stars: All of the wiring exits below the rear fuel injector cover, for a completely stealth installation. Is Holley working on a complete marine package or planning to in the future? I want to remove the old fuel injected Mercruiser factory EFI on both engines because they have begun to be troublesome. They have mods that help. Having selecting USCG-approved components, and sourced your O2 sensor adapter, there is but one more challenge--tuning. Maybe going all the way to the front is the way to go? We may earn a small commission from affiliate links and paid advertisements. No prime, but a second later it's ready to crank 'normally'. Miami, FL. *Possible delays due to Covid-19 click for more information. EFI EFI kit electronic fuel injection. The O2 sensor burned out immediately. $102.95. Wiring the Holley Sniper EFI system is equally easy. 5. Holley Sniper O2 sensor replacement. The adapter plate installs in between the exhaust manifold and the riser/elbow allowing for the water jackets to still be in place and an o2 sensor to be installed in the still dry exhaust gasses. PDF Holley Sniper Installation Supplement Sniper EFI Releases new Stealth 4150 Models! I would back-burner the ignition control questions until you get the fuel injection working. The truck started fine after install, and ran down the road ok. After some time, the truck will not start after it comes to operating temperature. I have twin 502 factory fuel injected Mercs and want to go to adaptive EFI. Add to Cart . PS, Once someone has a good 270/350 tune, everyone can use it. One of the benefits of using any Holley EFI system is that it self learns and tunes on its own. My Lightnings have a bung welded through the water and into the dry exhaust area at the collector. They have been working out well for a few years now. Followed all the instructions to the letter. I'm guessing by snail, that's another name for the riser? My bet based on longer pump run, to make pressure, you have a leaking injector. In order for it to work as designed the O2 sensor has to be installed in a dry exhaust system and needs to be placed 1-10in from the collector in the headers. Part# 534-199. Will I be able to run both systems off of one fuel pump? The light shines in the darkness, and the darkness has not overcome it. Welcome to ClassicBroncos! Otherwise I have to check for a place in my gasoline tank to put the lines in. Apr 13, 2017. with the extension. Mine is right where Steamers is, and works well with my AFI TBI. I am concerned about the O2 sensor consideration, but in the end isn't the carburetor situation open loop? 2023 HOLLEY PERFORMANCE PRODUCTS, INC. ALL RIGHTS RESERVED. Let me know how I can be of assistance. . I will be calling around to see if I can find someone to help that has experience. 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 fuel module is self contained with water jacket cooling and contains the low and high pressure pumps.
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