Sniper efi running rich on idle why

Joined Mar 15, 2017. 35 Posts. Discussion Starter · #1 · Apr 29, 2017. Like it says, my 95 2.5l is running extreamly rich. So rich that after 500 miles I had to do another oil change because there was so much fuel in the oil. I have to fill up every 100 miles. I've checked and replaced vacuum lines, put a new o2 sensor on, plugs, wires, cap. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators .... Edelbrock Performer Plus 2162 cam which gives me a duration of 218* and 228* at .050" lift. There is .5" of lift at the valve on both sides. This setup is pulling 12-16 in.Hg at idle, depending on where in the surge it is. I've tried running with both a "1" and a "2" cam setting, and it seems to run smoother at the two. In racing, however, running a rich methanol mixture instead of a stoichiometric mixture is routine for the additional engine cooling and accelerator pump shot for throttle response. In high-compression engines or engines with forced-induction, rich mixtures cool the cylinder contents and help avoid detonation. Re: Miata NB2 running too rich on IDLE Post by Nightsknight45 » Mon Apr 25, 2022 7:59 pm Under the idle setting, I see that you have "Use separate VE Table for idle" set. Oct 17, 2017 · Re: Holley sniper efi Post by 71Lumberwagon » Fri Feb 01, 2019 7:34 pm Its a litttle pricey but im running an edelbrock AVS 2 on my 318, easy to tune, you don't dump gas all over to change jets like the holley pops, I feel its easier to match the carb to the engine, however it is a mechanical secondary some people don't like that, but I've had .... How to install the easy to use Sniper EFI Hyper Spark Ignition System. Staff Writer. 06/12/2018. 10 min read Video. 2300 4150 4160. Sniper EFI Installation Guide. Staff Writer. 02/25/2020. 10 min read Video. Latest Articles. 2022 LS Fest Texas Holley LS Fest Datsun. LS Fest Texas 2022: The Dirty Datsun. Oct 17, 2017 · Re: Holley sniper efi Post by 71Lumberwagon » Fri Feb 01, 2019 7:34 pm Its a litttle pricey but im running an edelbrock AVS 2 on my 318, easy to tune, you don't dump gas all over to change jets like the holley pops, I feel its easier to match the carb to the engine, however it is a mechanical secondary some people don't like that, but I've had .... . Next step is adding the timing control. The sniper came with a coil driver as a separate piece. 4-wires on the driver, 2 wires for the magnetic pickup, lock the mechanical advance, align the rotor to the cap. After that is running, the progressive kit. As for the dual tank EFI configuration. It works. I do tend to get a "rich" smell at idle, but throttle response is fantastic. Something I have talked to several more experienced EFI guys about is to basically lie to the computer. The Sniper 2bbl will support up to 400hp. The 304 started out around 210hp back in 1970, and by the time they made the 304 in my 79, it had dropped to 130hp.

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About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators .... 2020. 8. 19. · Preston - Port Elizabeth. Read More. ... after parsing a value an unexpected character was encountered double quotes. . Standard Sniper EFI Features! Self Learning Means you don't have to be a computer/tuning wiz to have EFI! Integrated ECU Eliminates the need of mounting an external box, saving you time and money. Timing Control Provides optimal idle stability, and throttle response, and maximizes the output potential of your powerplant. Fan Control. Why does my Sniper idle high after driving on the highway? It is most likely due to RF interference (radio frequency). RF noise is quite common in older vehicles using original ignition components. It is especially true when using non-resistor spark plugs or solid core plug wires. Sniper EFI software was designed to make navigation simple and easy. Most tuning parameters and software functions can be found by selecting an icon from the toolbar. Detailed instructions of each icon are contained in this manual. FUEL SYNC. 980 Posts. #2 · Nov 17, 2004. If you are getting 10 miles / gal that should be 10 imp gallons for 100 miles. 10 imp gal = 45 litres, so that is running at 45:1 gas - oil ratio if you are. I'll answer this with two common scenarios. 1) Idling: Once the Learning has finished self-tuning the Base Fuel Table, enter the Learn Parameters and decrease the Learned Compensation Limits % down to around 3-5% in the idle area. The reason why is, the idle can go through repeated 'cycles of Closed Loop compensation' (+/−). When you're idling for a long period of time, the electric fans are. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators .... Since we're tuning for idle only, don't worry about anything above 1,200 RPM for now. The stock values in the table are usually around 8.0 gms/sec for the LS7 and between 6-7 gms/sec for. 2020. 1. 20. · How to install the easy to use Sniper EFI Hyper Spark Ignition System. Staff Writer. 06/12/2018. 10 min read Video. 2300 4150 4160. Sniper EFI Installation Guide. Staff Writer.. Set Idle Speed: 720 . Jdc1. SILVER Star. Joined Sep 9, 2013 Messages 4,294 Location Akron, OH. ... If it's running (or trying) rich or lean, that will show up on the display. '73 FJ40. 327ci with Holley Sniper EFI, Metaltech cage, 8074, Shackle Reversal, 33x10.5s, Aussie locker. ... '73 FJ40. 327ci with Holley Sniper EFI, Metaltech cage, 8074. 1) Launch the Holley EFI software from the icon on your desktop. 2) Choose Open Global Folder. 3) Double-click on the Custom Calibrations (Cals) folder. 4) Double-click on the "496 650HP" (or other applicable engine) Global Folder. 2020. 1. 20. · How to install the easy to use Sniper EFI Hyper Spark Ignition System. Staff Writer. 06/12/2018. 10 min read Video. 2300 4150 4160. Sniper EFI Installation Guide. Staff Writer.. You are turbocharging an air-cooled flat-4 VW that can typically sustain about 90hp of heat, and will probably try to run it extra rich to keep the poor heads cool while also pushing it for much longer than a typical quick drag run of 10-15 seconds. That will push your BSFC up substantially, and 20% more fuel (dripping rich) is 0.6 BSFC. I have a Sniper EFI set-up and just now got it running properly. A few key learnings that I will share: 1. Make sure you wire the ground and power feed from the sniper directly to. 2018. 5. 21. · No matter how lean I set the idle a/f it always runs at around 12.5-12.8 at idle. The correction varies from -20 to -25. Cruise (14.3) and WOT (12.8) are great. There is also a. 2021. 8. 31. · Hello. I'm running the sniper EFI with HyperSpark on a crate Chevy 502 engine. It starts fine and will run, but it runs rough, not the smooth idle I was expecting. It's also very rich, I've made a few adjustment from things I've read on this forum, but now I'm stuck. I've attached. You want 15 to 1 at idle you could do 14.7 but idling does not build enough heat to damage anything and will be running hot enough to clean carbon deposits and so on. Cruising part load I would target 14.7 to 1 with that I wouldn't try to go lean cruising unless the PCM is able to do it. Nov 13, 2007 · tobyw. '94 F-350, 460/auto/4wd, 4.10's on 265-16 A/T's, long tube headers, 2.5" dual exhaust with a crossover pipe (02 sensor in crossover), no cat, pipes exit behind rear tires. All new new parts (plugs, cap/rotor, wires, MSD 6AL, K&N drop-in filter, 02 sensor).The truck runs great, but gets a measly 6mpg on a good day, and the exhaust smells .... Nov 13, 2007 · tobyw. '94 F-350, 460/auto/4wd, 4.10's on 265-16 A/T's, long tube headers, 2.5" dual exhaust with a crossover pipe (02 sensor in crossover), no cat, pipes exit behind rear tires. All new new parts (plugs, cap/rotor, wires, MSD 6AL, K&N drop-in filter, 02 sensor).The truck runs great, but gets a measly 6mpg on a good day, and the exhaust smells .... Alexr54. I have been having some issues with my CJ7 with the i258 running the Sniper Holley EFI 2BBl BBD. Hopefully someone here with more experience can help me out..

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Sep 06, 2020 · Your engine running rich will lead to numerous problems and noticeable symptoms, like low gas mileage, reduced efficiency, lower acceleration, shaking while idling, and a strong smell of gasoline. Find out the engine running rich symptoms so you can find out how to quickly and properly diagnose your car. Keeping your air and fuel mixture at the ....

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Standard Sniper EFI Features! Self Learning Means you don't have to be a computer/tuning wiz to have EFI! Integrated ECU Eliminates the need of mounting an external box, saving you time and money. Timing Control Provides optimal idle stability, and throttle response, and maximizes the output potential of your powerplant. Fan Control. Double checked to make sure it wasn't an exhaust leak, but guessing it's fuel mixture. My regulator was set at 3.5 lbs - moved it down to 3 lbs - no real change. I understand the Weber tuning can be finicky - I"ve read though the Weber CARBURETOR SET UP AND LEAN BEST IDLE ADJUSTMENT site, but figured I'd get some real world experience suggestions. Engine is a street flat 4, 4 valve, high tumble/swirl NA with 10:1 static and 8.5:1 dynamic compression ratio on midgrade gasoline. Peak power is at 6200 RPM and peak torque at 3800-4600 RPM. x-axis is engine load vs y-axis being engine RPM. My observations running the engine with this fuel table is: - NO knocking or detonation on midgrade gas. Sep 23, 2020 · After you change the plugs, run a datalog of at idle for 30 seconds or so with a mild blip of the throttle towards the end. Zip this datablog along with the current Config File that you download from the Sniper. This will allow a review of your setup and also may reveal other underlying issues.. I have a Sniper EFI set-up and just now got it running properly. A few key learnings that I will share: 1. Make sure you wire the ground and power feed from the sniper directly to. For Boosted or Nitrous Applications - For cruise and idle situations a value of 14.7-15.0 (stoic) will be ideal. This will allow the vehicle to be emissions friendly and fuel-efficient. - When tuning for max power, an a/f ratio of 11.5-11.8 should be used. Note, this value will be slightly different for each application. 861 sold . Sponsored. Holley EFI 558-416 LS Main Harness to LS3-style MAP Sensor Adapter Opens in a new window or tab. Brand New. ... 4 product ratings - Holley Sniper EFI 850013 Upgrade Billet Fuel Rail Kit Fits OE LS3 V8 Intake. C $183.42. Top Rated Seller Top Rated Seller. or Best Offer +C $53.35 shipping. from United States. Rough Engine Idle. A normal healthy idle air control valve (IAC), will provide smooth idling in your vehicle. But, if the valve goes bad for any reason, the idling will go from smooth to rough. A rough idle will result in, intense vibrations forming, whenever your vehicle is stopped with the engine running. Since less air will be going into the.

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Aug 04, 2021 · With idle timing, and VA off bottom of of carb, idle timing might well be 50’. This is why non ‘puter Performance SBC/BBC motors (4 speed/3:73 up, 3200-3600# cars) always set timing 34/36 VA disconnected, all in 1800-2400 Whatever idle timing is, it is as long as starter spins. If starter bogs, use a coil kill switch. Spin starter, switch coil on.. IDLE / LIGHT CRUISE: 13.5 AFR - target with GREEN mode When you start your vehicle we refer to this as being in IDLE condition. When you shift into gear and drive at a low mph we refer to this as being a LIGHT CRUISE. With 14.7 being the industry standard stoich AFR value, we typically like to see these conditions run slightly richer. Oct 03, 2013 · Discussion Starter · #1 · Oct 3, 2013. I have a 03 walker 26hp efi just bought used, it cranks and idles great and the blades come on great. Once I idle the mower to almost or full idle the mower starts sputtering and running rough while sitting still, when I try to drive it and mow with the same thing happens, and I won't even be mowing .... Here are the steps for calibrating the idle mixture: Progressively turn the idle-mixture screws in. Start with a quarter turn on each one and readjust the idle speed to an appropriate RPM. A big-cam engine needs a higher idle speed, which is usually about 1,000 rpm; a regular street cam needs about 600 rpm. I explain the steps needed to get your Holley Sniper to idle properly. If you are using your Sniper EFI System to control timing, navigate to Tuning > Advanced > Advanced Idle > Idle Spark and ensure that the Idle Spark Enabled is set to Disabled. You can re-enable this after you have completed this idle speed adjustment process. Switch the power to the Sniper off..

For Boosted or Nitrous Applications - For cruise and idle situations a value of 14.7-15.0 (stoic) will be ideal. This will allow the vehicle to be emissions friendly and fuel-efficient. - When tuning for max power, an a/f ratio of 11.5-11.8 should be used. Note, this value will be slightly different for each application.

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Jan 20, 2020 · How to install the easy to use Sniper EFI Hyper Spark Ignition System. Staff Writer. 06/12/2018. 10 min read Video. 2300 4150 4160. Sniper EFI Installation Guide.. Oct 03, 2013 · Discussion Starter · #1 · Oct 3, 2013. I have a 03 walker 26hp efi just bought used, it cranks and idles great and the blades come on great. Once I idle the mower to almost or full idle the mower starts sputtering and running rough while sitting still, when I try to drive it and mow with the same thing happens, and I won't even be mowing ....

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. yeah according to the holley sniper forum, the default AFRs are terrible for gas millage, (im getting 10-12 mpg as well) stock is 13.5 Idle, 14 cruise, and 12 WOT. Im thinking of bumping my cruise up to 14.5 and idle to 14 - maybe that will help. 2020. 1. 20. · How to install the easy to use Sniper EFI Hyper Spark Ignition System. Staff Writer. 06/12/2018. 10 min read Video. 2300 4150 4160. Sniper EFI Installation Guide. Staff Writer.. 2020. 8. 19. · Preston - Port Elizabeth. Read More. ... after parsing a value an unexpected character was encountered double quotes. Also included is Holley EFI 's industry-leading, easy to use software suite that. Holley Terminator X Max; Fueling: TBD; Power Goals: Initial goal is somewhere in the 500-600 whp/wtq range. The engine is built to withstand far more than that, but that was my intent. . Idle Tuning is a very important part of tuning any EFI system, especially our self-learning units like Sniper or Terminator X EFI. Getting the throttle blades and IAC to work together will keep your fuel injected hot rod running smooth and predictable. Featured Products Sniper EFI $5.78 - $2,457.95 479 Products View Parts author Jeremy Stoermer. Jul 10, 2010 · The only thing you will need is a fuel pressure regualator for EFI and weld an O2 bung into the headers. I am running the Aeromotive A1000 pump with the A1000 carbed bypass regulator. I just need to switch to the A1000-6 injected bypass regulator. Atlantic Speed has it for the same price, although I have seen it on sale in the $1599 range.. Oct 14, 2020 · If you download your configuration from your ECU either to the SD card or directly to the software (if you are using a CAN-to-USB adapter cable) then click on the fuel injector icon (at the top nav bar), then Acceleration Enrichment (on the left window), then AE Correction vs TPS (at the top-right of the main window) you’ll see this:.

14″ Air Filter Base (we drill and install a grommet for the IAC) 1″ air filter spacer (makes the install easier with more room over the fuel rails) MAP sensor and fuel pressure regulator vacuum tubing 3/8″ NPT plug for the intake runner #5 (when needed) ** Purchase a washable complete air Filter kit separately ** Add to Cart $570 (includes S+H). Sep 14, 2017. #16. The MAF sensor is calibrated for a certain CFM which also equates to max injector size and horsepower. When the time comes to increase power from 150 hp to 300 hp with double the airflow, the MAF sensors output signal will probably peak (hit the 5 volt signal limit) way before peak power is reached. To set idle mixture screws: 1. Get the engine up to temp. 2. Shut the engine off. 3. Install a vacuum gauge to a full manifold vacuum port. 4. Turn the screws all the way in until lightly seated. 5. Next, back them out 1 full turn and restart the engine making sure the choke is completely off. 6. When we tuned the motor we were running rich and when pulling 02 sensor moisture was detected. This fixed it right up and at $80 for a 02 sensor you dont want to keep fouling them. Ran all season and zero issues. Feb 12, 2022 #7 Thomas K Well-Known Member Joined Nov 30, 2021 Messages 110 Reaction score 116 wet hull said:. Find Holley Terminator X GM Gen V LT Early Standalone ECU & Wire Harness 550-1600 at LSXceleration with Free shipping on qualifying orders! ... 3.5" handheld gets your engine running in no time with a step-by-step calibration wizard ... Progressive or Non-Progressive, Rich/ Lean Safeties, and target Closed Loop AFR; Advanced Tables - 4x 1D. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators .... Jul 31, 2011 · 65 Posts. #9 · Aug 1, 2011. first thing you need to check is fuel presure regulator, pull off vacum line and look for any signs of fuel.if that looks ok start engine with hose diconected and look for fuel comming from regulator, should be no signs of fuel, if that is ok check fuel presure.engine running 30-45 psi .key on engine off 35-45 psi .... Holley Sniper EFI-system? ... Minkä lukeman naputtelen tuohon " WOT Ignition Timing "? generalo, 26.4.2021 #369. Seevu Double Gearhead. 32 to 34 degrees of timing could be just about right for a typical pump gas street engine. Googletin..

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Nov 16, 2020 · You wouldn't want a fuel injector firing on the compression stroke, or your ignition hitting full advance at idle. The following, key position sensors work very differently but all help communicate to the ECU what the engine is doing, and what the driver is asking it to do. Throttle Position Sensors. Jul 31, 2022 · The most common reasons why your engine running rich are a faulty MAF sensor, O2 sensor, or MAP sensor. It can also be caused by a faulty coolant temp sensor, IAT sensor, or a faulty fuel pressure regulator. There are many parts that could cause a rich running engine because there are so many parts in an engine affecting the fuel mixture.. 2017. 11. 8. · O2 Sensor Mounting: The O2 needs to be mounted 6-8” after the merge in the header collector. 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. Nov 13, 2007 · tobyw. '94 F-350, 460/auto/4wd, 4.10's on 265-16 A/T's, long tube headers, 2.5" dual exhaust with a crossover pipe (02 sensor in crossover), no cat, pipes exit behind rear tires. All new new parts (plugs, cap/rotor, wires, MSD 6AL, K&N drop-in filter, 02 sensor).The truck runs great, but gets a measly 6mpg on a good day, and the exhaust smells .... cjoffroad said: Some settings that might help you with the stalling. Under you idle settings. Set your IAC hold position to 20%. Ramp Decay Time 3 seconds. RPM above idle to start ramp 600rpm. rpm above idle to re-enable idle control 100 rpm. I have the stalling issue too when coming to a stop after being under load.

Oct 17, 2017 · Re: Holley sniper efi Post by 71Lumberwagon » Fri Feb 01, 2019 7:34 pm Its a litttle pricey but im running an edelbrock AVS 2 on my 318, easy to tune, you don't dump gas all over to change jets like the holley pops, I feel its easier to match the carb to the engine, however it is a mechanical secondary some people don't like that, but I've had .... 2017. 6. 9. · Do this by slightly by turning the primary idle speed screw out (counter-clockwise) about a half turn. This should slow the engine down. Then shut the engine off long enough for. Set Idle Speed: 720 . Jdc1. SILVER Star. Joined Sep 9, 2013 Messages 4,294 ... The reason I ask, is if it's not getting an RPM signal from the coil, you'll get a prime shot and a. This is extremely easy for our vehicles, all that is needed is a factory Ford fuel pump hanger and an Aeromotive 11540 fuel pump. You can save money going this route by not buying the Holley Sniper Master kit as the fuel pump is not used and sells for $190. The Ford hanger and Aeromotive pump were $207, had I known the in-tank route would be so. How to install the easy to use Sniper EFI Hyper Spark Ignition System. Staff Writer. 06/12/2018. 10 min read Video. 2300 4150 4160. Sniper EFI Installation Guide. Staff Writer. 02/25/2020. 10 min read Video. Latest Articles. 2022 LS Fest Texas Holley LS Fest Datsun. LS Fest Texas 2022: The Dirty Datsun. May 01, 2009 · 442. Loc. Cypress, TX. Apr 30, 2009. #1. My old horse is running rich no black smoke, but the fuel smell in the exhaust at idle and under mild throttle is pretty intense. No, it is really intense – could probably have afterburners if needed. The Broncosaurus has a 1990 Lincoln Mark VII speed density EFI conversion.. Rough Engine Idle. A normal healthy idle air control valve (IAC), will provide smooth idling in your vehicle. But, if the valve goes bad for any reason, the idling will go from smooth to rough. A rough idle will result in, intense vibrations forming, whenever your vehicle is stopped with the engine running. Since less air will be going into the. Whats happening at the moment, it will idle fine to operating temp, around 80-82, the thermo fans will cycle in and out, AFR will hover around 14.5, battery volts are a steady. Cost wise, the new TBI EFI units are good when looking at 400-700 HP (NA) Engines. Under 400 HP, you can use smaller less expensive carbs, fuel pumps and such to keep costs down although you don't get the benefits of the EFI. I haven't found a way to do EFI on the really cheap side yet. Setting up the EFI fuel system for me was the hard part. Nov 16, 2020 · The ECU controls the fuel mixture, idle speed, ignition timing, and in some cases, valve timing, and drive-by-wire throttle-body if so equipped. It uses the sensors to monitor specific engine parameters and make changes to those based on the information it is receiving about the engine’s operating conditions.. Jun 11, 2020 · Sniper EFI 2300 2-Barrel Self Tuning Kit. How To. tech. Sniper EFI Videos. Sniper EFI Tech. Sniper EFI Quadrajet. Sniper EFI. video. Watch along as Jeremy shows you how easy it is to update the firmware on your Holley Sniper EFI!. This means starting with engine displacement, idle rpm, rev limit, fuel pressure, and resetting the throttle position sensor (TPS) calibration. Then set your idle, cruise, and WOT settings the same as before. Once all this is complete, the engine should run as it did when you first installed the system. The flap on top doesn't follow the other choke Mar 30 , 2008 · FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - 390 with Edelbrock carb stumbles and dies under light throttle. target print(X) print(Y). Then after.

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The Cam Specs are attached. I have the Holley Sniper EFI 4150, with the controlled timing Hyperspark ignition. I'm running way too rich and I'm trying to get the highest vacuum. I know this Cam doesn't make good vacuum. I contact BULLET and they can't advise because of the controlled timing and EFI, but did suggest 18 intial with a carb. The Cam Specs are attached. I have the Holley Sniper EFI 4150, with the controlled timing Hyperspark ignition. I'm running way too rich and I'm trying to get the highest vacuum. I know this Cam doesn't make good vacuum. I contact BULLET and they can't advise because of the controlled timing and EFI, but did suggest 18 intial with a carb. houses for sale hertfordshire Curious about FiTech, the newest company to offer self-learning EFI, we used our big-block Valiant as a testbed for FiTech's new Go EFI 2x4 1200 HP d.

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The first sniper I installed for my friend the 02 sensor went out within a week. Holley sent him a new one for free. And had no issues after the new o2 sensor. I bet I won't get that lucky. I will get a new 02 sensor before I swap back to the orange box. I had the car running before with the orange box and the Sniper combo. It works fine. Aug 04, 2021 · With idle timing, and VA off bottom of of carb, idle timing might well be 50’. This is why non ‘puter Performance SBC/BBC motors (4 speed/3:73 up, 3200-3600# cars) always set timing 34/36 VA disconnected, all in 1800-2400 Whatever idle timing is, it is as long as starter spins. If starter bogs, use a coil kill switch. Spin starter, switch coil on.. With throttle body--style EFI, if the engine idles decently but stumbles slightly off idle, try adjusting the idle and / or cruise air/-fuel ratio slightly richer. This can help overcome an off-idle stumble. This assumes that the ignition system has sufficient initial timing. An off-idle stumble can sometimes be cured with more initial timing. 2018. 5. 21. · No matter how lean I set the idle a/f it always runs at around 12.5-12.8 at idle. The correction varies from -20 to -25. Cruise (14.3) and WOT (12.8) are great. There is also a. Jan 20, 2020 · How to install the easy to use Sniper EFI Hyper Spark Ignition System. Staff Writer. 06/12/2018. 10 min read Video. 2300 4150 4160. Sniper EFI Installation Guide.. Set Idle Speed: 720 . Jdc1. SILVER Star. Joined Sep 9, 2013 Messages 4,294 Location Akron, OH. ... If it's running (or trying) rich or lean, that will show up on the display. '73 FJ40. 327ci with Holley Sniper EFI, Metaltech cage, 8074, Shackle Reversal, 33x10.5s, Aussie locker. ... '73 FJ40. 327ci with Holley Sniper EFI, Metaltech cage, 8074. Oct 03, 2013 · Discussion Starter · #1 · Oct 3, 2013. I have a 03 walker 26hp efi just bought used, it cranks and idles great and the blades come on great. Once I idle the mower to almost or full idle the mower starts sputtering and running rough while sitting still, when I try to drive it and mow with the same thing happens, and I won't even be mowing .... Sniper EFI Throttle Body 1 N/A 4150 Flange Sniper EFI Throttle Body Includes ECU, fuel injectors, Manifold Air Pressure (MAP) sensor, Throttle Position Sensor (TPS), Manifold Air Temp Sensor (MAT), and an Idle Air Control Valve (IAC) 5 Air Cleaner Gasket 1 9 3.5" Touch Screen Controller. Number one is for Idle AFR, which can range from 13.4 to 14.7 on average, depending on the engine. Adjusting this setting will help idle quality and takeoff from an idle. 1100, 3000, 6000 at 45kpa cruise are your cruising AFR ratios, and these can vary from 13.8 to 14.7 on average depending on the engine's needs and your desired fuel economy. connector on the Sniper EFI Main Harness (7 pin Connector). These connectors are keyed, however the Purple and Green wires should plug into each other (Figure 4). ... If you already have a running engine with Sniper EFI and are upgrading the ignition system. Instead of re-running the wizard, you can manually change your ignition type. When we tuned the motor we were running rich and when pulling 02 sensor moisture was detected. This fixed it right up and at $80 for a 02 sensor you dont want to keep fouling them. Ran all season and zero issues. Feb 12, 2022 #7 Thomas K Well-Known Member Joined Nov 30, 2021 Messages 110 Reaction score 116 wet hull said:.

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Oct 17, 2017 · Someday, it will get EFI when the price comes down for 2-throttle body setup. You will become very sensitive to exhaust leaks, because your system will be totally screwed up by it. So, the collector gasket or manifold gasket leak that you currently tolerate and overlook... with EFI of any type, it will be an issue. That leak is also sucking air.. Also included is Holley EFI 's industry-leading, easy to use software suite that. Holley Terminator X Max; Fueling: TBD; Power Goals: Initial goal is somewhere in the 500-600 whp/wtq range. The engine is built to withstand far more than that, but that was my intent. The flap on top doesn't follow the other choke Mar 30 , 2008 · FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - 390 with Edelbrock carb stumbles and dies under light throttle. target print(X) print(Y). Then after. Fuel system purge and clean. Oil purge. I have to have the idle set rather high, in my opinion, just to keep it running when hot. Even then, if it sits at a red light for about 30s or. 81 Posts. Discussion Starter · #1 · Apr 14, 2018. Hi there, Finally got my Chevelle out of the garage with the new engine this morning. I've ran the Sniper EFI system with the. Aug 04, 2021 · The Cam Specs are attached. I have the Holley Sniper EFI 4150, with the controlled timing Hyperspark ignition. I’m running way too rich and I’m trying to get the highest vacuum. I know this Cam doesn’t make good vacuum. I contact BULLET and they can’t advise because of the controlled timing and EFI, but did suggest 18 intial with a carb.. Since we're tuning for idle only, don't worry about anything above 1,200 RPM for now. The stock values in the table are usually around 8.0 gms/sec for the LS7 and between 6-7 gms/sec for. What Rowdy said about target AFRs is reasonably spot on. Technically, stoichiometric AFR is 14.7:1 IIRC. I run my idle and cruise at 14.2. Don't remember what WOT. Jun 02, 2020 · Idle Tuning is a very important part of tuning any EFI system, especially our self-learning units like Sniper or Terminator X EFI. Getting the throttle blades and IAC to work together will keep your fuel injected hot rod running smooth and predictable. Featured Products Sniper EFI $5.78 - $2,457.95 479 Products View Parts author Jeremy Stoermer. I just started the motor for the first time last weekend and again for a short time this evening. The sound is music to my ears, but there are a couple of things I am not sure of. I. If you are using your Sniper EFI System to control timing, navigate to Tuning > Advanced > Advanced Idle > Idle Spark and ensure that the Idle Spark Enabled is set to Disabled. You can re-enable this after you have completed this idle speed adjustment process. Switch the power to the Sniper off.

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Oct 14, 2020 · If you download your configuration from your ECU either to the SD card or directly to the software (if you are using a CAN-to-USB adapter cable) then click on the fuel injector icon (at the top nav bar), then Acceleration Enrichment (on the left window), then AE Correction vs TPS (at the top-right of the main window) you’ll see this:. Oct 03, 2013 · Discussion Starter · #1 · Oct 3, 2013. I have a 03 walker 26hp efi just bought used, it cranks and idles great and the blades come on great. Once I idle the mower to almost or full idle the mower starts sputtering and running rough while sitting still, when I try to drive it and mow with the same thing happens, and I won't even be mowing .... Since we're tuning for idle only, don't worry about anything above 1,200 RPM for now. The stock values in the table are usually around 8.0 gms/sec for the LS7 and between 6-7 gms/sec for. Nov 13, 2007 · tobyw. '94 F-350, 460/auto/4wd, 4.10's on 265-16 A/T's, long tube headers, 2.5" dual exhaust with a crossover pipe (02 sensor in crossover), no cat, pipes exit behind rear tires. All new new parts (plugs, cap/rotor, wires, MSD 6AL, K&N drop-in filter, 02 sensor).The truck runs great, but gets a measly 6mpg on a good day, and the exhaust smells .... I do tend to get a "rich" smell at idle, but throttle response is fantastic. Something I have talked to several more experienced EFI guys about is to basically lie to the computer. The Sniper 2bbl will support up to 400hp. The 304 started out around 210hp back in 1970, and by the time they made the 304 in my 79, it had dropped to 130hp. 8. While you are making your fine adjustments keep an eye on the TPS value, if it goes above 0 shut the engine off and let it sit for 30-45 seconds. Turn the ignition back on and go into Go-EFI Initial Setup then go to reset TPS Learn, inside reset learn go to Reset TPS Data by switching the 0 to 1 and hit send to ECU. In racing, however, running a rich methanol mixture instead of a stoichiometric mixture is routine for the additional engine cooling and accelerator pump shot for throttle response. In high-compression engines or engines with forced-induction, rich mixtures cool the cylinder contents and help avoid detonation. Jul 27, 2009. #9. Re: need an expert...5.7L EFI rich running. You need to manually test some of you're sensors (disconnect you're wiring harness and check with a multi-meter.. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. Apr 05, 2022 · For this to happen, your car needs to balance the ratio of fuel and air during combustion. A proportion of 14.7:1 is the best ratio. That is 14.7 parts air to 1 part fuel. It is not easy for your car to maintain this ratio. When it fails, and there is too much fuel getting in the engine for combustion, we say your car is running rich.. Log_0029_warm_idle.efi (49.3 KB, 223 views) 2001 Camaro SS Built 370 LQ9, Ported 243s, D-1SC 14 psi. 691 rwhp, 643 rwtq ... Also, the car was already running rich, so I. 6.0 AFR - Rich Burn Limit (engine fully warm) 9.0 AFR - Black Smoke / Low Power 11.5 AFR - Best Rich Torque at Wide Open Throttle 12.2 AFR - Safe Best Power at Wide Open Throttle 13.3 AFR - Lean Best Torque 14.6 AFR - Stoichiometric AFR (Stoich) 15.5 AFR - Lean Cruise 16.5 AFR - Usual Best Economy 18.0 AFR - Carbureted Lean Burn Limit. Aug 14, 2021 · If not, install a pressure gauge on the inlet to the Sniper to confirm a steady 58 to 60 psi. The Sniper does not monitor fuel pressure, so it's easy to end up rich if the pressure is too high. The WBO2 sensors are very sensitive. Any misfire or leak in the exhaust produces a lean reading and the Sniper compensates with more fuel.. I do tend to get a "rich" smell at idle, but throttle response is fantastic. Something I have talked to several more experienced EFI guys about is to basically lie to the computer. The Sniper 2bbl will support up to 400hp. The 304 started out around 210hp back in 1970, and by the time they made the 304 in my 79, it had dropped to 130hp.

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The Holley Sniper comes with the free, and very nice, software. Doing this in Windows File . The latest Sniper EFI ECU Firmware, Sniper EFI Handheld Firmware and Sniper EFI PC Software is available for download at www.Holley.com. If this is your first visit, be sure to check out the FAQ by clicking the link above. Idle Tuning is a very important part of tuning any EFI system, especially our self-learning units like Sniper or Terminator X EFI. Getting the throttle blades and IAC to work together will keep your fuel injected hot rod running smooth and predictable. Featured Products Sniper EFI $5.78 - $2,457.95 479 Products View Parts author Jeremy Stoermer. Introducing the Holley High-Horsepower Super Sniper 4150 EFI. Holley came out with the Sniper EFI 4150 not long ago, and it made quite a splash. However, it continued to just miss the mark with serious racers because it was limited in the amount of horsepower it could support. This has been rectified in the newest iteration of the line. yeah according to the holley sniper forum, the default AFRs are terrible for gas millage, (im getting 10-12 mpg as well) stock is 13.5 Idle, 14 cruise, and 12 WOT. Im thinking of bumping my cruise up to 14.5 and idle to 14 - maybe that will help. connector on the Sniper EFI Main Harness (7 pin Connector). These connectors are keyed, however the Purple and Green wires should plug into each other (Figure 4). ... If you already have a running engine with Sniper EFI and are upgrading the ignition system. Instead of re-running the wizard, you can manually change your ignition type. The Holley Sniper comes with the free, and very nice, software. Doing this in Windows File . The latest Sniper EFI ECU Firmware, Sniper EFI Handheld Firmware and Sniper EFI PC Software is available for download at www.Holley.com. If this is your first visit, be sure to check out the FAQ by clicking the link above.

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Mar 13, 2016. Messages. 22. Jul 27, 2021. #1. I just installed a Holley Hyperspark ignition, distributor, and coil. I am having a hard time finding the timing settings for a Blueprint 306. I had it set at 15 idle, 36 cruise and WOT. I was running really hot so I set it at 12 idle and it ran much cooler. Joined Feb 15, 2009. 3 Posts. Discussion Starter · #1 · Feb 22, 2009. Hey guys my 97 road king idles bad when cold i have to hold throttle then when bike gets warm shell idle but very low, i sprayed the intake area with starting fluid to check intake leak no change, my plugs are also totally black full of carbon, shes running rich. 2022. 7. 31. · Here is a more detailed list of the symptoms of an engine running rich: 1. Check engine light. When the fuel to air ratio is high, you will have the check engine light coming on.. and bolts. This is a great time to visually inspect the overall Sniper EFI install. - Verify Wiring - ECU must be powered and grounded directly at the battery and the battery is fully charged. Pink Wire must be attached to a 12V+ switched source that has voltage during cranking and run positions of the ignition switch. Apr 05, 2022 · For this to happen, your car needs to balance the ratio of fuel and air during combustion. A proportion of 14.7:1 is the best ratio. That is 14.7 parts air to 1 part fuel. It is not easy for your car to maintain this ratio. When it fails, and there is too much fuel getting in the engine for combustion, we say your car is running rich.. 81 Posts. Discussion Starter · #1 · Apr 14, 2018. Hi there, Finally got my Chevelle out of the garage with the new engine this morning. I've ran the Sniper EFI system with the. Holley sniper efi repair. Jan 04, 2022 · Replacing Your Carburetor With A Holley Sniper EFI Kit ~ Is It Worth It? January 4, 2022 Roadkill Customs Technical Info. Hagerty asks if upgrading from your trusty Holley carburetor to fuel injection is worth the trouble. Davin Reckow puts the Redline Rebuild Ford 289 on the engine dyno to find out if the Holley Sniper EFI is really an. Jul 31, 2011 · 65 Posts. #9 · Aug 1, 2011. first thing you need to check is fuel presure regulator, pull off vacum line and look for any signs of fuel.if that looks ok start engine with hose diconected and look for fuel comming from regulator, should be no signs of fuel, if that is ok check fuel presure.engine running 30-45 psi .key on engine off 35-45 psi .... So for example, if you have to pedal the throttle to keep the engine running at 750 RPM and you have 16 degrees Base Idle Advance with 70 kPa manifold pressure and you're holding the throttle at 22%, changing the Base Idle Advance to 19 degrees may result in 68 kPa manifold pressure with you only holding 20% throttle to maintain the same 750. Why does my Sniper idle high after driving on the highway? It is most likely due to RF interference (radio frequency). RF noise is quite common in older vehicles using original ignition components. It is especially true when using non-resistor spark plugs or solid core plug wires. famous bob mopar misfit. I don't see any reason why an EFI system wouldn't be great on a tunnel ram. Remember the adjustments made by the EFI setup are based on the O2 sensor in the exhaust. Yes, you program what you want to happen but the adjustments come from the readings of the O2 sensor. 1 Answer. Arctic cat 2011 700 EFI. The EFI flashes on the digital display. Took it to the shop they said the ECU is malfunctioning but it runs great. Any help to eliminate the Efi flash without spending $400. Posted by Colorado Bear on Aug 06, 2017. Backfiring. If the engine doesn't have enough air, the air-to-fuel mixture ratio is off, and some fuel might be left after the spark. This fuel then makes its way through the system and could. Jun 09, 2017 · In order to reduce the engine speed, the first thing we need to do is to close the curb idle position of the butterflies. Do this by slightly by turning the primary idle speed screw out (counter-clockwise) about a half turn. This should slow the engine down. Then shut the engine off long enough for the TPS to reset..

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