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Holley sniper high idle at startup?
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Holley sniper high idle at startup?
Switch power to the Sniper on and crank the engine. For those who have high idle issues even after you verified you do not have vacuum leaks, RFI issues, the TPS & IAC are set correctly, may want to check your return spring on your secondary throttle blades. When it's warm, I need to put the IAC Hold Position at 80%, so it starts at 800 to 900. When the engine is warm IAC is about 5% and engine idles at 800, if I increase the idle I. Once it gets to 180-190°F and fans start to kick on & off at idle, the engine starts to stumble and. We setup the system using the race camshaft profile in the Global Config File. This fixed the high throttle position sensor reading (TPS) of above 1% that likely caused my idle issues Sep 8, 2018 · Hot idle is now acting as shown in the video. Hoping to get some help as i'm cooked! I have a SBC 350 and when I come to a stop, or slow down and coast from time to time (say once a trip), the car will lose RPM and stall. Seems to do it if it's sit for an extended period. My other question has to do with AFR. High idle, not reaching 160°F. 4) Your Base Timing Table has all of the typical Holley baseline faults including high timing at low RPM low vacuum at 36°. There is a really rich fuel smell and after multiple starts, I can't get. We have about 7,500 miles on the car. 01-29-2023, 01:36 PM. and I currently have the car in garage installing a Holley Sniper Stealth system. India’s airlines are putting their aircraft, grounded due to the Covid-19 pandemic, to good use. These are the best ones that will help you earn the most money with little effort. I have the Sniper with HyperSpark Ready-To-Run distributor on a 408 stroker with a 5-speed. At high elevations it could read as low as 75kPa. Hot idle is now acting as shown in the video. If you're installing a Sniper EFI system and almost ready to crank it over for the first time, this is the video for you! author Jun 18, 2023 · Sudden Random Stalling At Idle. 5, but can’t figure out the timing. If you've just started a business, you may be eligible for the startup costs deduction. Note that even when your TPS is sitting at 1%, idle control is still active, IAC and spark. Jan 20, 2020 · If you're installing a Sniper EFI system and almost ready to crank it over for the first time, this is the video for you! Nov 17, 2022 · When it comes to troubleshooting a Holley Sniper EFI system, there are four main symptom areas to watch for: fuel delivery, ignition, air/fuel mixture, and timing. Shop holley Community Log In Ask our Experts, we're here to help! Monday - Friday 8AM - 5PM CST. Once you start driving the car you might find out that it pings with 25° of advance at idle. If the idle speed is too low for the cam (probably is) the engine will misfire. Within the last quarter, Holley (NYSE:HLLY) has observed the following analyst ratings: Bullish Somewhat Bullish Indifferent Somewhat Bearish. Sometimes I can save it if I blip the gas before it stalls below 500 RPM, then it will go back to a regular idle. The Sniper is operating perfectly during all temperatures with all functions; startup, idle, acceleration and driving under load, with the exception of when I move from Park or Neutral into gear, the engine stumbles and nearly stalls. Turn that idle time in to cash by renting out your RV with RVShare and Outdoorsy. I have the Sniper with HyperSpark Ready-To-Run distributor on a 408 stroker with a 5-speed. Using the Holley Sniper EFI software (LINK), look at where the live cursor moves to during this occurrence, and manually tune that area of the Base Fuel Table (enrich or lean) & Base Timing Table (optimize ignition timing). I think he said he did that for a winter tune. While adjusting the idle speed screw, if the TPS Position begins to read higher than 0%, cycling the ignition switch will recalibrate the TPS back to zero. Replace the CTS if it reads high. Sniper EFI Idle Setting/Throttle Blade Setting (Holley Sniper EFI Quick Start Manual): Once the engine is up to operating temperature, the idle speed can be set to what was configured in the Wizard. With the engine off, remove the air cleaner. My idle was really high last week. Copy the file from the SD card to your computer, zip it, and post it here. Tweet Sniper 2300 stalling out when returning to idle. Surging is usually caused by a lean condition, but I don't see anything that's really wrong with the tune. High idle, idle stop all the way out, IAC at 0%. This fixed the high throttle position sensor reading (TPS) of above 1% that likely caused my idle issues Sep 8, 2018 · Hot idle is now acting as shown in the video. 5, but can’t figure out the timing. After I've driven the car and it's up to temperature, if I shut it off and wait 15 to 20 minutes, the idle surges badly upon startup. Jul 28, 2017 · At high elevations it could read as low as 75kPa. Advertisement For most of u. com/halffastgaragethehalffastgarage@gmail Oct 18, 2021 · Hey all. Fuel pressure is looking good at high 50s and low 60s when getting on it Air/Fuel Ratio is about 12. Navigate to Home > Tuning > Advanced > Advanced Idle > IAC Startup and click on "IAC Parked". If the fuel pressure is too high or if you have an injector stuck open, the AFR value will be very low - maybe 8 or 9 indicating a rich condition. Switch power to the Sniper on and crank the engine. It almost stalls, then catches itself, then almost stalls, etc. 1300 rpm's!! The Holley idle speed video mentions that there's, and says it's in the Sniper Stealth instructions, but I haven't found any mention of what it should be. To start viewing messages, select the forum that you want to visit from the selection below Holley Sniper EFI 4150 Super Sniper 650 with HyperSpark Ignition Post Cancel. I've been working slowly through my Cadillac 500 tune, Learning as I read others posts and comments, so it's with reluctance that I post a datalog and Config File for my engine. Holley Idle Speed Adjustment Instructions: Once the engine is up to operating temperature, the idle speed can be set to what was configured in the Wizard. Small block Chevy 350 competition hydraulic roller cam, I can't remember exact specs but in the range advertised duration 292° lift @ I've read on the forum and done several of the suggestions. I've tried adjusting the idle settings (iac ramp down and start up iac position settings) in all directions with no change. ) Not IAC, but Idle Spark control usually works well at: 30-40 P Term & 50-60 D Term. Jun 2, 2020 · Sniper EFI Idle Tuning. On This episode I go through how to adjust the idle screw for proper IAC set up and also get into the Holley Sniper touch screen wizard to adjust the IAC hol. 050 Exhaust: 246° • Lift @ Valve Intake:. Some folks need ideas on ways to relax or their brain and hands would never idle. I do have an aggressive cam installed and idle set to 800 RPM, any lower an it will sometimes die when issue starts. Mar 11, 2017 · To start viewing messages, select the forum that you want to visit from the selection below. Everything runs great on my Sniper kit! The only thing that bothers me is when the car is dead cold, you fire it and it immediately goes to set idle speed. Tweet Hot Idle Surge. Would a cylinder not firing cause the high AFR and remaining high idle? Comment Gaz64 Join Date. Just fired up my Sniper EFI and initially the idle was around 2,200. 5, but can’t figure out the timing. LSA (Lobe Separation Angle) - 110°. After about 1-2 minutes, it opens the IAC and starts to immediately idle at about 2200-2500 RPM. Having some issues with a new Sniper Master Kit install. To start viewing messages, select the forum that you want to visit from the selection below Hi all. I recently cleaned the IAC pintle. My idle was really high last week. Sniper idle is too low on cold startup. 5 at idle and while driving around. sikeston missouri craigslist Thus, if you truly plugged the IAC port, the engine should have died, unless getting air somewhere else (vacuum leak from PCV, brake booster, intake gasket). The main issue I’m having is that during hot idle, the idle speed will sometimes surge in a regular pattern repeating every 5 to 10 seconds. During this process, I knew there had to be one single small detail about the Sniper system that was keeping me from nailing this, as I know EFI and. Fired it up and it went to 2000 RPM. By then the temp was up to around 190°, and I new the thermostat had opened up, because the radiator had gone down. To do this, open up the Initial Startup gauge screen that was used in section 17 With the vehicle in neutral, adjust the idle screw until the IAC Position reads between 2 and 10%. This fixed the high throttle position sensor reading (TPS) of above 1% that likely … Hot idle is now acting as shown in the video. 08-05-2021, 08:45 PM. In "P" at idle, if I manually opened the throttle plate briefly and returned it, the engine would speed up and stay idling faster. It has the Sniper EFI and HyperSpark system on it. It has the Sniper EFI and HyperSpark system on it. When it's warm, I need to put the IAC Hold Position at 80%, so it starts at 800 to 900. Dec 13, 2016 · Turn the idle speed screw on the primaries in about 2-3 turns after it makes contact with the linkage and starts opening the primary throttle blades. Sometimes we had issues with the idle, especially when pulling up to a stop sign it would drop to 400-500 rpm and almost die, but then it would idle. 4) Your Base Timing Table has all of the typical Holley baseline faults including high timing at low RPM low vacuum at 36°. 08-05-2021, 08:45 PM. Tweet Pinging/Detonation. MAT (Manifold Air Temperature Sensor) – Should read ambient on a cold engine with the key on and the … If you're installing a Sniper EFI system and almost ready to crank it over for the first time, this is the video for you! When it comes to troubleshooting a Holley Sniper EFI system, there are four main symptom areas to watch for: fuel delivery, ignition, air/fuel mixture, and timing. set alarm for 65 minutes Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. There should be a class action against Holley for what complete & utter crap the Sniper EFI system is. I'm working on trying to get my truck running good, but after installing the Sniper 2, I'm getting a lot of pinging when I’m more than 3/4 throttle. Occasionally the engine would die when I would pull into a stop sign. At high elevations it could read as low as 75kPa. Switch power to the Sniper on and crank the engine. When the engine is warm IAC is about 5% and engine idles at 800, if I increase the idle I. Tweet 04-03-2018, 09:59 AM. At high elevations it could read as low as 75kPa. It idles up & down and will just randomly idle up and stay. I'll be going back tomorrow to do some idle adjustments and hopefully get it on the road for a little … Sniper EFI Idle Tuning. It cranks over about 3-4 revolutions, and fires up but surges a couple times before the idle stabilizes. Note that even when your TPS is sitting at 1%, idle control is still active, IAC and spark. The IAC says 100% and this happens every time. Back & forth, back & forth. amazon owner operator truck driving jobs 1973 Camaro, Holley Sniper 4150, HyperSpark distributor, coil, CDI box. Everything runs great on my Sniper kit! The only thing that bothers me is when the car is dead cold, you fire it and it immediately goes to set idle speed. Slightly crack the throttle open, unload the fast idle cam, and turn the choke cap clockwise until you see the choke plate open. My car has done this three times over time (not often). If you use high-powered accessories, the idling alterna. Your Sniper is effectively fueling for an over 3-liter engine below 2000 RPM. After checking everything, updating, retuning it still had idle issues. Doesn't die or anything, but no high idle. 12-11-2022, 05:35 PM. By then the temp was up to around 190°, and I new the thermostat had opened up, because the radiator had gone down. I've been driving it around the neighborhood at low speeds just letting it Learn. It then got up to around 2,700. Learn about sniper missions and special operations units There are plenty of occasions where you might find your car idling. I bet the exhaust smells better at 13. I've been chasing a high water temperature issue along with various timing/AFR issues and was wondering if it has do with my elevation (4600 feet). In "P" at idle, if I manually opened the throttle plate briefly and returned it, the engine would speed up and stay idling faster. May 3, 2024 · Holley Sniper high IAC Position and low idle when cold until giving it enough gas to hit the IAC Hold Position then it works good and idles at the right spot. Any ideas on trouble shooting. Now I just need to drive.
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The alternator provides enough electricity to charge the battery. Sometimes we had issues with the idle, especially when pulling up to a stop sign it would drop to 400-500 rpm and almost die, but then it would idle. Tweet Hot Idle Surge. I'm the only guy who has enough interest in Holley stuff to download the Sniper SW to my laptop and try to fix the problem. The truck starts & runs fine when the weather is warmer 50+°F, but when outside temperatures get in the 30s°F it won't start. Problems I've found/things I've done so far: Many have had stuck injectors but that causes an insane amount of fuel. Nov 27, 2023 · Holley Sniper 2 EFI High Idle Issues (Fixed) - 454 Big Block Chevy. Bosch 17014 does fit the Fitech harness, but does NOT fit the Holley Sniper. Holley Sniper Surging and Stuttering (SOLVED) I haven't posted in a while, but I wanted to share some issues we had in case it helps someone else on the thread. I've verified the idle timing is set at 15° advance. To do this, open up the Initial Startup gauge screen that was used in section 17 With the vehicle in neutral, The HyperSpark also gives you built-in start retard as well as things like high speed retard, temperature based advance or retard, vacuum advance, reverse timing curves for idle stability, etc. I have the Sniper with HyperSpark Ready-To-Run distributor on a 408 stroker with a 5-speed. Jul 28, 2017 · At high elevations it could read as low as 75kPa. teana trimp 1973 Camaro, Holley Sniper 4150, HyperSpark distributor, coil, CDI box. High Idle Issue: The truck warms up just fine and idles correctly. The IAC Position will read high if you have the idle screw out too far. I did replace the injectors on my FiTech and somewhat solved the problem. So on startup there's a quick dip of the battery voltage to 7V just before the start than quickly rises. I'll check with a timing light and report back as well as inspect cap/rotor, etc When I ran a carb my ignition timing with mech and vacuum advance worked out to 29° at idle. When my idle can go as high 1000 RPM and IAC Position will be a 0%. To diagnose a problem, start by ruling out the simplest causes first. 4) The Sniper EFI SYSTEM also creates a fuel LEARN TABLE that captures the automated learning adjustments to fuel. Learn about sniper teams and sniper team weapon systems Sniper Scopes - Sniper scopes are specialized telescopes which amplify an image from great distances. Engine is a new Blueprint Cruiser 350, very stock. My car has done this three times over time (not often). Aug 1, 2017 · First time setup - erratic idle & fluctuating timing. Dec 29, 2018 · I have a Ford 352 FE with the Super Sniper EFI and Holley Dual Sync Distributor installed. First sensor I ordered myself, was wrong. Just by tweaking a few things I do believe I. Car runs & cruises great everywhere above idle. May 31, 2017 · Here's the problem, every now and then while driving when I come to a stop and put it back in park, my idle sticks at 850-1000, the IAC drops to 0, and my timing is sitting at 7° instead of the selected 15° at idle. After I've driven the car and it's up to temperature, if I shut it off and wait 15 to 20 minutes, the idle surges badly upon startup. used mobile homes for sale craigslist texas Remember the days when “work” meant manual labor with a side of blood, sweat, and tears? Neither do we. Jul 30, 2022 · Using the Holley Sniper EFI software (LINK), look at where the live cursor moves to during this occurrence, and manually tune that area of the Base Fuel Table (enrich or lean) & Base Timing Table (optimize ignition timing). May 26, 2024 · When my idle can go as high 1000 RPM and IAC Position will be a 0%. Good start, but I won't going further before being able to test the timing. Switch power to the Sniper on and crank the engine. To diagnose a problem, start by ruling out the simplest causes first. 07-31-2022, 09:29 AM I have a 351 Cleveland in an Aussie XE Ford Falcon wagon running a sniper and a hyperspark. It never does this when cold, and only sometimes does it when hot. Extreme Backfire. Yesterday, 02:12 PM. My brother has installed a new Sniper system on a Chevelle with a 402 big block with an unknown size camshaft that only generates about 7" vacuum at idle. If stay-at-home orders amid the Covid-19 cr. A performance cam will always have a stinky idle due to the overlap period. Any ideas on trouble shooting. To do this, open up the Initial Startup gauge screen that was used in section 17 Idle Tuning is a very important part of tuning any EFI system, especially our self-learning units like Sniper or Terminator X EFI. Jul 30, 2022 · Using the Holley Sniper EFI software (LINK), look at where the live cursor moves to during this occurrence, and manually tune that area of the Base Fuel Table (enrich or lean) & Base Timing Table (optimize ignition timing). Bosch 17014 does fit the Fitech harness, but does NOT fit the Holley Sniper. uf orthopedic institute Direct plug in and even has a longer harness. The car was running well with no problems when. May 1, 2020 · Installed a Lokar throttle linkage bracket custom made for the Sniper, removing the old one that had been on my Holley 750. I have tried covering the IAC hole and adjusting the idle but even with the car off, key on the IAC is at 54%. May 26, 2024 · When my idle can go as high 1000 RPM and IAC Position will be a 0%. 470" forged steel crankshaft & H-beam rods. Share #1. With the key-on/engine-off, perform a TPS Autoset. It never does this when cold, and only sometimes does it when hot. Extreme Backfire. Yesterday, 02:12 PM. EFI system starts beautifully when cold, works fine when I drive it. ) Startup IAC Position - Hold & Decay Time: 15 seconds (Less is typically better than more. Learn about the duties. Holley Sniper EFI idle issues. Direct plug in and even has a longer harness. That sounds like it may be a clogged injector. TPS Position begins to read higher than 0%, cycling the ignition switch will recalibrate the TPS back to zero. I have the Sniper with HyperSpark Ready-To-Run distributor on a 408 stroker with a 5-speed. 10-12-2022, 04:36 PM For example, there is one case at 1000 RPM where the timing is 23° at idle and then jumps to 34° at 1000 RPM at about 90 kPa The temperature for Learn to start is determined by the Coolant Temperature Enrichment. It never does this when cold, and only sometimes does it when hot. Extreme Backfire. Yesterday, 02:12 PM. That sounds like it may be a clogged injector. Thus, if you truly plugged the IAC port, the engine should have died, unless getting air somewhere else (vacuum leak from PCV, brake booster, intake gasket).
The engine runs OK when hot. Holley is sending me a new wideband sensor, no questions asked, and it shipped today. Startup is great, hot or cold starts and it runs very smoothly and revs freely. 12-15-2017, 11:02 PM. Datalog & Config File attached: Well I'm pretty stumped. veve crypto Small block Chevy 350 competition hydraulic roller cam, I can't remember exact specs but in the range advertised duration 292° lift @ I've read on the forum and done several of the suggestions. I finally got the initial timing set and the engine starts, but runs at high RPM up around 1,200, and the monitor shows fluctuating timing. Look at the Data Monitor/Gauges I'm trying to learn tuning my car. At high elevations it could read as low as 75kPa. While adjusting the idle speed screw, if the. Bosch 17014 does fit the Fitech harness, but does NOT fit the Holley Sniper. Getting the throttle blades and IAC to work together will keep your fuel injected hot rod running smooth and predictable. After checking everything, updating, retuning it still had idle issues. hard rock punta cana toro menu Yeah, it was good to have a high initial timing setting. There is also a procedure in the instructions for setting the idle. The main issue I’m having is that during hot idle, the idle speed will sometimes surge in a regular pattern repeating every 5 to 10 seconds. Feb 8, 2021 · Once started, it should have a slightly elevated initial idle, ramp down to a level appropriate to the ambient air temperature, and then continue to idle down to the target idle that you’ve established for the engine. To do this, open up the Initial Startup gauge screen that was used in section 17 With the vehicle in neutral, To start viewing messages, select the forum that you want to visit from the selection below Holley Sniper Fuel Leaks 07-10-2020, 01:23 PM My cam is more mild duration is 244° @ I idle around 50-65 kPa so decent vacuum is created. neckbone mob piru 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. Please be aware that this is a community forum. Since I took it off and reinstalled it, the idle doesn't ramp up to 1200 and back down at startup like it used to either. If it won't run at a fast idle then you either have a spark problem or a fuel problem.
Tweet Hot Idle Surge. Jun 2, 2020 · Sniper EFI Idle Tuning. For what it's worth! Jun 6, 2017 · 1970 Nova, aluminum head 355 with a big cam, Turbo 400. My problems (so far) are around start and idle. 01-10-2024, 06:15 PM. Learn about sniper scopes and see pictures of sniper scopes Holley (HLLY – Research Report) received a Hold rating and a price target from D Davidson analyst Michael Baker yesterday Holley (HLLY – Research Report). For those who have high idle issues even after you verified you do not have vacuum leaks, RFI issues, the TPS & IAC are set correctly, may want to check your return spring on your secondary … Once started, it should have a slightly elevated initial idle, ramp down to a level appropriate to the ambient air temperature, and then continue to idle down to the target idle that you’ve established for the engine. When my idle can go as high 1000 RPM and IAC Position will be a 0%. Oct 19, 2021 · High idle, idle stop all the way out, IAC at 0%. The throttle stays at that 1,025 RPM between shifts. If you have a laptop you can put the Sniper into Open Loop and manually find the best AFR at idle. Today I wanted to get my idle issues fixed with my Holley Sniper EFI. I've adjusted the idle air control to between the reccomend settings of 2% to 10% and done. '92 Ford Mustang GT: 385"/62 block, Eagle 3. There are so many areas to take fuel away I'm having difficulty knowing which one to pick from. Please be aware that this is a community forum. My plan is to increase idle timing to 26-30° and speed to 850 RPM, which should help. Sometimes we had issues with the idle, especially when pulling up to a stop sign it would drop to 400-500 rpm and almost die, but then it would idle. Companies in the Industrial Goods sector have received a lot of coverage today as analysts weigh in on Caterpillar (CAT – Research Report), Ho. May 9, 2019 · There is an idle speed setting on the handheld that is entered during the base setting under the set-up wizard. I also have an in-tank Sniper fuel pump. Suddenly goes EXTREMELY lean on idle. The BOSCH #17025 is what fits the Holley Sniper. the raw story Just by tweaking a few things I do believe I. Jul 30, 2022 · Using the Holley Sniper EFI software (LINK), look at where the live cursor moves to during this occurrence, and manually tune that area of the Base Fuel Table (enrich or lean) & Base Timing Table (optimize ignition timing). 10-10-2020, 01:15 PM. Open your throttle plates. The IAC needs to be open a fair amount on a 400 inch engine, I'd probably set it around 75% and see how that works. Jan 20, 2020 · If you're installing a Sniper EFI system and almost ready to crank it over for the first time, this is the video for you! Nov 17, 2022 · When it comes to troubleshooting a Holley Sniper EFI system, there are four main symptom areas to watch for: fuel delivery, ignition, air/fuel mixture, and timing. I read in the manual it is supposed to be 60 PSI, as regulated by the internal regulator. It never does this when cold, and only sometimes does it when hot. Extreme Backfire. Yesterday, 02:12 PM. Jan 29, 2022 · Adjusting the iac hold position to decrease the noise/whistle and we also discover how much smoother it becomes on deceleration. Sniper EFI Idle Tuning. A performance cam will always have a stinky idle due to the overlap period. 5, but can’t figure out the timing. Some of the basic steps involve checking float levels, and adjusting for proper fuel pressure. Has been running fine for 6 months, but has not been driven much in the winter. Everything runs great on my Sniper kit! The only thing that bothers me is when the car is dead cold, you fire it and it immediately goes to set idle speed. Companies in the Industrial Good. Thus, Holley can not guarantee an answer or timing on an answer Sniper 4500, Dual Sync. Jan 20, 2020 · If you're installing a Sniper EFI system and almost ready to crank it over for the first time, this is the video for you! Nov 17, 2022 · When it comes to troubleshooting a Holley Sniper EFI system, there are four main symptom areas to watch for: fuel delivery, ignition, air/fuel mixture, and timing. homll pill brown diamond I've attached my Config File and a datalog file in hopes someone can point me. With the key-on/engine-off, perform a TPS Autoset. Fuel pressure increasing each start/idle. May 26, 2024 · When my idle can go as high 1000 RPM and IAC Position will be a 0%. Here are some strategies. I was thinking the car had to get up to temp before the computer. Sometimes we had issues with the idle, especially when pulling up to a stop sign it would drop to 400-500 rpm and almost die, but then it would idle. First off, let me see if I have realistic expectations with what I'm trying to achieve here. Just by tweaking a few things I do believe I. Bosch 17014 does fit the Fitech harness, but does NOT fit the Holley Sniper. Switch power to the Sniper on and crank the engine. Fuel pressure increasing each start/idle. There is also a procedure in the instructions for setting the idle. 04-27-2014, 01:56 PM. I've been chasing a high water temperature issue along with various timing/AFR issues and was wondering if it has do with my elevation (4600 feet). It almost stalls, then catches itself, then almost stalls, etc. Aug 6, 2023 · Rumors are that the Sniper 2 resolves the RFI / EMI issues, not sure what else, but I'm not headed in that direction.