Holley sniper forums
Turn the key on and let the 3.5" TSLCD power up. Start the datalog. Then turn the key to engage the starter. Let the engine run until it dies and then stop the datalog. Then turn the key off. Also download the GCF tune file from the Sniper and upload both the tune and the datalog to this site. DARDY.Again, this may be a faulty Base Fuel Table or lack of pressure or a bad injector. Step 1 - measure your pressure. Step 2 - remove your air cleaner and have someone turn on the ignition. Watch for the prime shot. All four injectors should provide equal amounts of fuel.
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Replacement Part Numbers for Sniper EFI: 553-115 Sniper EFI 3.5" LCD Handheld 558-490 7-Pin Main Sniper EFI Harness 558-491 10-Pin Sniper EFI Harness 556-150 Sniper EFI Coil Driver 543-105 Sniper EFI Idle Air Control Motor (IAC) 12-878 Sniper EFI Built in Fuel Pressure Regulator Sniper EFI Optional Accessories: 558-443 Sniper EFI CAN Bus To USB ...Please be aware that this is a community forum. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. ... c10_12_22.zip Sniper_0016.zip Sniper_0017.zip. Attached Files c10_12_22.zip (7.3 KB, 38 views) Sniper_0016.zip (239.9 KB, 35 views) Sniper_0017.zip ...06-15-2022, 06:18 PM. Here's the current Configuration File. I've been extremely careful to avoid EMI/RFI issues. All Sniper wires are separated as far as possible from the spark plug wires, at least as far as possible with a SBC. Then handheld wire goes through a different grommet in the firewall than other wires.Thanks in advance. May God's grace bless you in the Lord Jesus Christ. '92 Ford Mustang GT: 385"/6.3L SBF, Dart SHP 8.2 block, Eagle 3.470" forged steel crankshaft & H-beam rods, Wiseco 4.200" forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration/.623" lift/114° LSA H/R camshaft ...Please be aware that this is a community forum. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. ... Holley Sniper EFI 4150 Super Sniper 650 with HyperSpark Ignition. Comment. Post Cancel. Rumblefish. Senior Member. Join Date: May 2019; Posts: 128 ...First. Prev. 1 / 3. C1 & C2 Corvettes - Holley Sniper EFI - I am nearing the end of tuning the Holley Sniper EFI system that I started to install about six months ago. The good news is that the system delivered great starts and idle quality, and great drivability and performance.To do this, open up the Initial Startup gauge screen that was used in section 17.0. With the vehicle in neutral, adjust the idle screw until the IAC Position reads between 2 & 10%. 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.Tweet. #1. Sniper EFI With 6AL. 10-12-2022, 06:52 AM. I'm in the process of installing the Sniper EFI into my '80 Corvette with a 383 Stroker. For ignition the car came with: MSD 6AL Part number 6420. MSD Programmable Timing Controller Part number 8981. Mallory Comp 9000 Breakerless Ignition.Stalls. 01-24-2024, 04:30 PM. Need help. Since it got cold (below 50°F), when I start my car every few weeks it runs for a few minutes then stalls out. Have to turn key off wait a few minutes and it'll restart. Once warmed up it'll keep running.Please be aware that this is a community forum. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. ... Also, the Holley Sniper EFI will intermittently inhibit Closed Loop at idle, if the AE vs TPS/MAP RoC Blanking values are set too low.I've currently got it set at Fan #1 (low speed) on at 189° (F) and off at 180° (F), and Fan #2 (high speed) on at 203° (F) and off at 194° (F). This is very close to the settings in the Sniper EFI manual, just a slightly lower on temperature for both Fan #1 & Fan #2. In normal driving conditions, once the thermostat is open the fans are on ...Sniper EFI Tuning & Tech. May God's grace bless you in the Lord Jesus Christ. '92 Ford Mustang GT: 385"/6.3L SBF, Dart SHP 8.2 block, Eagle 3.470" forged steel crankshaft & H-beam rods, Wiseco 4.200" forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration/.623" lift/114° LSA H/R camshaft, Trick Flow R-Series FlowTech Induction Comp ...Determine the model number of a Holley carburetor by locating its list number. This number is stamped on the carburetor and is preceeded by a letter. Look for the list number on th...Two things to try. First, pull the alternator belt and run the engine while taking a datalog for 10 or 15 seconds. View the battery voltage and see if it's smoother. Second, temporarily connect the pink wire directly to the positive battery post, start the engine, and take a datalog and compare the battery signals.Sniper cranks, no start. 02-26-2019, 08:53 AM. I've done the prestart checklist and the sensors check, everything is good, but it will not start. I've narrowed it down to fuel as it will start with starter fluid. However, I have good fuel pressure going into the Sniper. 60 psi when the pump is priming and 50 when it's primed.Come to find out, the monitor wire got caught up in the clutch mechanism and it shorted out the ECU in the Sniper. After running some test with Holley Tech Support it was decided to remove it and sent back to replace the ECU & Monitor. Holley Tech Support had me remove the SD card with the current tune setup. They advised that the new ECU will ...Please be aware that this is a community forum. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel.Mar 31, 2018 · Tweet. #1. Intermittent high idle - Sniper EFI. 03-31-2018, 12:54 PM. I'm new to Holley Sniper EFI. I've had it installed for a couple months. My only complaint is I think it's very slow to come back to idle when coming to a stop light (manual transmission). My bigger issue is the past few times I've driven it (weekend warrior), after about 20 ...
Beet juice is celebrated as a superfood. It is becoming more popular as the health benefits of beet juice are discussed in health and nutrition forums. Even some athletes take it a...To start viewing messages, select the forum that you want to visit from the selection below. Please be aware that this is a community forum. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. Thus, Holley can not guarantee an answer or timing on an ...HyperSpark Issue Help. 01-10-2024, 06:15 PM. I've been running Holley Sniper for several years, but just recently decided to update to HyperSpark with the distributor, coil, and ignition CDI box. I'm now having issues and my first guess is RFI, but was hoping someone could take a look and let me know what you see.There are nearly 2,800 people representing 130 different countries at the World Economic Forum this year. The global elite really is quite global. Delegates at the 2020 annual meet...Tweet. #1. Random Shutting Off. Today, 12:47 AM. My Holley Sniper has been randomly shutting itself off since installing. I cannot seem to pinpoint the issue. It usually happens …
Share. Tweet. #1. Sudden erratic behavior, high AFR. 07-31-2022, 09:29 AM. Hi there. I have a 351 Cleveland in an Aussie XE Ford Falcon wagon running a sniper and a hyperspark. I installed the Holley parts a couple of years ago and while I haven't put on more than a couple of thousand kilometers, I haven't had any trouble to date!adjust the idle screw until the IAC Position reads between 2 and 10%. While adjusting the screw if the TPS. Position reads begins to read higher than 0% cycling the ignition switch will recalibrate the TPS back to zero. NOTE: Do not attempt to set the target idle speed and IAC position until the engine is above 160°F!…
Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. To do this, open up the Initial Startup gauge screen that . Possible cause: The Swaggart singers include Robin Herd, Randy Knaps, Andrew Holley, Joseph Larson, M.
Sniper Won't Learn. 10-20-2019, 09:37 PM. Hello. I'm running a new tune on my Sniper. While cruising at a steady throttle I noticed Target A/F Ratio and actual AFR are 1-2 ratios off. IE, if the target is 14.7:1, it'll be 12-13:1. So I pulled up the vitals page under multi-gauge menu. I noticed it sits in Open Loop and Not Learning.96 posts · Joined 2015. #1 · Nov 24, 2016. A few weeks ago I purchased the new Holley Sniper EFI system for installation on my 55 Chevy 210 with a crate 350. For those of you considering this upgrade, here is a walk-through of how my installation went, with a review at the end: PARTS INSTALLED: MSD Pro Billet Low-Profile Distributor.
The IAC setting is at 4% and TPS 0% and the enginge idles at 750 RPM. The problems start over after a few minutes of driving. I've updated the firmware to it's latest version, start all over with default settings and the problem still exists. Engine is almost new (bought 3 years ago). Also exhaust is replaced, no leaks.It was a gradual process of learning from my own experiences, other users, Holley technical forums, EFI systems pro, technical bulletins and other sources. My intention for this thread is to bring together information that I spent time researching - into one place, and answer some of the common questions that surround the Holley Sniper platform.Share. Tweet. #1. Sniper On AMC 304 CJ5. 03-17-2017, 07:23 PM. Hi, I've worked several weeks to get my new Sniper EFI system on my 73 CJ5. I got it installed, initial startup completed, and it fired up after fuel primed. I'm running an MSD Digital 6A with no timing control. Stock everything else except for an Edelbrock intake manifold.
May 8, 2024 · 02-02-2023, 12:00 AM. Holley For Mar 5, 2024 · Come to find out, the monitor wire got caught up in the clutch mechanism and it shorted out the ECU in the Sniper. After running some test with Holley Tech Support it was decided to remove it and sent back to replace the ECU & Monitor. Holley Tech Support had me remove the SD card with the current tune setup. They advised that the new ECU will ... Please be aware that this is a community fGreetings from the land of Oz. I've had the Sniper Tweet. #1. Sniper EFI Problems. 11-09-2021, 03:51 PM. I have a Holley Sniper EFI with HyperSpark ignition. I recently bought the car with the EFI system on it. The person I bought it from said he never could get it to run for more than a few seconds. I got it home, checked it all over, everything is hooked up correctly. Increasing the idle RPM provides a smoother i Holley projection is allot more "tweaking" than sniper. Now the only reason one would run Projection would (typically) be if you were running high horsepower, nitrous, etc. I was surprised Holley kept making projection, but then realized there were still special performance applications. Projection has always been finicky.Tweet. #1. New Sniper - Running well, then going lean. 03-29-2021, 12:13 PM. Hi all. I'm new to the Sniper community, but have a newly rebuilt Toyota 2F inline 6 with a Sniper 2300. It was running really well, but then started to stumble/run lean occasionally. Symptoms gradually increased in frequency until the truck would basically not run. Please be aware that this is a community forum. Alt74 posts · Joined 2016. #1 · Dec 10, 2016. I wSearch the forums for quite a few sniper threads Tweet. #4. 02-25-2024, 08:10 AM. MSD CDI boxes provide a Gray tach signal wire, Holley Sniper provides a Brown tach signal wire for a clean RPM signal. When using an ignition amplifier, no connections at the coil are allowed due to the higher voltage (and often multi-spark) input that can damage tachometers. Please be aware that this is a community forum. A Two things to try. First, pull the alternator belt and run the engine while taking a datalog for 10 or 15 seconds. View the battery voltage and see if it's smoother. Second, temporarily connect the pink wire directly to the positive battery post, start the engine, and take a datalog and compare the battery signals.11-07-2023, 06:05 PM. Looks like your Base Fuel Table is too rich, so whenever the Sniper is in Open Loop the engine runs rich. If you look at the datalog you can see that the engine is rich and that it takes a fair amount of time for the Sniper to react. You should reduce the Base Fuel Table by 20% and then try it again. There are nearly 2,800 people representing 130 different countries a[Are you a beginner knitter looking to try your hand at knTiming: Base = 14° Vacuum = 8° Centrifugal (all in by 2400) = 22 Sniper Not Learning. 01-07-2019, 04:37 PM. Can't see why the Sniper is not Learning. I posted the bog issue I've had also. It only happens below 1800 or so. Friend told me to get a 2500 stall. I have a 355 SBC with Edelbrock RPM heads (2.02) 70cc chamber heads.This forum is for the Holley Sniper throttle body injector system. You should post your question on the Terminator or Terminator X forum for the ECU system you're using. ... I moved this thread into the Holley Dominator EFI forum. May God's grace bless you in the Lord Jesus Christ. '92 Ford Mustang GT: 385"/6.3L SBF, Dart SHP 8.2 block, Eagle 3 ...