running holley sniper without o2 sensor

running holley sniper without o2 sensor

$102.95. Never tried it myself or know anyone fwho has, but Little kids play hooky . big kids play. I installed one also on mercruiser 260 hp. So far so good. Was told by holley tech support to make adjustments to the fuel prime percent and multiplier settings, played with those with no major improvement. EFI System Pro had everything I needed for my EFI upgrade. My question is concerning what happens a year later, when I have a top-end swap . Well an update on the Sniper install. 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. Other? Removed all the unused wires from harness and wrapped all the remaining wires and harness with rfi shielding tape. Part # HM206. Here is one on start up tuning. Purely coincidence about the '2300' number. It's fast, simple and absolutely free. Q3. If the indicator reads "LOW Err" double check the connection to the CTS. There can be leftover debris from manufacturing that have been washed down and are now clogging one. #1. EFI Systems based on Holley's world-class Dominator and HP ECU's. *Possible delays due to Covid-19 click for more information. If this is a first time effort, find a tuner in your area with marine experience. holley sniper efi Holley Sniper EFI Self-Tuning Master Kit - Black Ceramic Finish $1,475.95 Part# 550-511K holley efi 100 PSI Stainless Pressure Sensor $155.95 Part# 554-102 Are you waiting to convert your carbureted vehicle to Sniper EFI, but don't like the idea of mounting an external fuel pump? 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. Master ASE tech since 91. Staff Writer. EFI EFI kit electronic fuel injection. Great Article. Did a test startup on my new sniper by running the power wire to battery + and not using the o2 sensor.I also capped off the regulated return line with a hos. The first option is to just buy the injector body and the controller with the wiring harness and sensors. 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. check out the. The boat underway acts very much like a water brake dyno I strongly believe that a well broken in engine in good condition can stand a much more critical tune w/o issues and deliver almost the same fuel economy as the proposed EFI conversion. Because the fuel maps are built on a speed-density (ie, engine RPM versus manifold air pressure) fueling strategy. All of the wiring exits below the rear fuel injector cover, for a completely stealth installation. Also, with Headers you loose 600 to 700 degrees between Head and bottom collector, you don't want to read that loss. Any exhaust down at engine level or lower will definitely get at LEAST some steam. The fuel pump question is the tough one. I had an injector fail after a month of running and called the tech line who helped me figure that out. 10 min read. Add to Cart . If there's anyone willing to read a bit and offer advice about what to do when doing a top-end swap (when you may be in a scenario with a new top-end that's the EFI isn't calibrated for AND you can't have an WBO2 sensor connected), please let me know. All of the wiring begins at the throttle body and connects outward from there. Thanks. I also capped off the regulated return line with a hose, clamps, and chamfering bit. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Mine is right where Steamers is, and works well with my AFI TBI. 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. blue doberman puppies. Sep 14, 2021. PRO's: Wideband O2 sensor harness is longer, allowing easier connection and routing. It may not display this or other websites correctly. Then turn the engine off and "lock in" the tune in a non-feedback loop mode, and quickly remove the headers and wash them off to prevent damage and then swap to the manifolds, but that would honestly be a huge PITA. Replaced O2 sensor but continued to have AFR issues running too rich. Menu. The right side o2 was obviously reporting a fat 10.3 afr as a result, but the car still went 139mph, LOL. I have twin 502 factory fuel injected Mercs and want to go to adaptive EFI. Everyone raving about customer service is telling the truth! JavaScript is disabled. I installed the adapter and elbow so it's at an angle above the entry point. Followed all the instructions to the letter. Restore | Make | Philosophize | Eat | Drink | Be Happy | Let's Go Brandon! I have searched thru the forum as much as I can, with not much luck. Search for the cheapest hotel deal for O2 Hotel Taipei Main Station in Taipei City. In the event you decided earlier that you are going with the Sniper EFI System you will not have the requisite tuning capability by simply using the included handheld tuner. It should be pretty straight forward what each of these values do. Categories. From there, the idea is that it will self-tune to the requirements of the engine. As far as warranty goes, Holley products are covered by a 90-day warranty against defect in material or workmanship. My bet based on longer pump run, to make pressure, you have a leaking injector. I didn't read all this, but yes, the EFI system can be run without a WBO2 sensor. From time to time we receive phone calls from individuals who are interested in converting their carbureted boat motor to fuel injection. Spray a rag down pretty good with brake cleaner. Capability Range: Professional turn on the ignition.but do not start the engine. $119.95. The engine floods and it is embarrassing when leaving a lock. The very basic fuel and spark tables are the limiting aspect, Holley does offer advanced software for more precise tuning. I bought a new holley sniper , dual sync dist., coil, and holley in tank fuel pump, When engine got hot it would go crazy. Advanced throttle body injection systems capable of transmission control and more. Brand: Holley EFI Emission Code: 5: Material: . Holley EFI requires several pressure inputs in order to run an engine. Without Headers Steamers location (above) is perfect, up close to the engine where you have not lost much heat. You are using an out of date browser. 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. Visit their website for more details. It could be an instant fix. Had to replace the oxygen sensor on my car for the terminator x after the original one failed and this fixed all my problems. Running? -- I particularly like the Daytona Sensors Approach to the Ignition Curve.- Are you pursuing Coast Guard Certification for the Sniper_EFi? Posted By : / actual instructions in flowcharting are represented in /; Under :nose exercise before and afternose exercise before and after As far as spark control, the Sniper will let you tune those 4 points, nothing else will. (Image/Wayne Scraba) The throttle body is a bolt-on replacement for a carburetor. 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. To take advantage of all the site features, please take a moment to register. Sent unit back to Holley. 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. Air-Fuel Ratio (AFR) - The most common reference term used for mixtures in internal combustion engines. We also use content and scripts from third parties that may use tracking technologies. Holley 2300 is their nomenclature for a 2-bbl generic fitment carburetor. dropping a sensor on the ground), Extreme exhaust temperatures (Greater than 930 degC/1700 degF), Unheated sensor in exhaust stream. Will I be able to run both systems off of one fuel pump? 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. Some of the landlubbers who are reading this may not realize that many inboard engines utilize what is called a wet exhaust, pushing the water from the engine block into the exhaust and then back into the lake/river/sea on which they float. Stay up to date with the latest releases, events, promotions and more. . 29. Sniper EFI 2300 Marine. Sort. I recommend popping for the Master . 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 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. Do you understand that no USCG-approved aftermarket EFI fuel system (including fuel pump, lines, filters, adapters, and hose ends) exists, that installing unapproved components on a boat will make the boat out-of-compliance with USCG regulation and could result in financial loss and legal liability (and that you release us from any liability by proceeding)? Since your existing low-pressure fuel system is not going to work with the Sniper EFI System this puts you in the unenviable position of choosing between USCG compliance or EFI. Initially I was looking for the upgrade to a 4V holley 4175 carb, but this option has peaked my interest. The latest is the new Holley Sniper EFI touted as a true bolt-on self-learning carb replacement. 3. I'm about to embark on the same type of project. Find a lower price anywhere and we'll beat it by 5%! Only show this user. The throttle body has a built in fuel pressure regulator set at 58.5 psi. Bolt-on carburetor style EFI for your classic car or truck. Then operate open loop with a fuel map\Timing curve.I am interested in the capabilities of the Sniper product (4 injector) in a Marine application.. Dec 28, 2016. When it did keep running, the headers all started to smoke. http://forums.holley.com/showthread.ension-Harness, http://forums.holley.com/showthread.4388#post54388, If this is your first visit, be sure to Some parts are not legal for use in California or other states with similar regulations. Install the throttle linkage to the Sniper EFI throttle body. That sounds like one solution. the engine not running. Sorry for the late reply, Douglas. I am looking for a TBI with full sensors, mainly atmospheric for Sept and Oct and a Idle Air sensor for warm starts.I welcome your thoughts.Regards, i'm not aware of a universal aftermarket EFI fuel pump kit that is USCG approved. YES! Product Q&A . I've installed several of these adaptive EFI's on cars with great success. 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. And the relay and fuse were mounted along the firewall. I am just now ready to do the tuning this weekend. Its the Holley Pro Jection TBI mentioned by the above poster. The in tank pump is quieter, will normally run cooler and should last longer. 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. 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. Oxygen sensor: It's perfectly OK to share narrow band oxygen sensors with the stock ECU. That would be for individuals that run the OEM exhaust manifold, as well as individuals that run headers. Not sure how well the sensor likes being that close to the port. I recently installed the sniper setup on my stock 71 duster 340 4 speed. He knows his stuff, gets back quickly to you, etc. Thinking about this I think this will work very fine! No matter what I do, it will not start. Car runs perfect . Then if that doesn't work call the tech line they are great! Use a return fuel line. I think I could run more boost but it's a real hand full right now. When problem-solving this type of issue, consider when and how you could use a work-around. It is possible for the ECU to have an internal failure that can kill O2 sensors. but I'm finding when running engines with holley sniper kits the the engines are very eratic ,the air fuel numbers are always changing drastically from one pull to . This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Do you also recognize that the O2 sensor that is required for closed-loop operation will not survive in the "wet" manifold used by most marine engines, and that to install a device to protect the O2 sensor from this moisture may require the removal, machining, and replacement of the exhaust manifold? nwsl head coach salary,

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