It will add fuel based on the temperature and won't affect your warm start.If you have another EFI system (or if the multiplier isn't giving you the results you want) then you'll have to play with the cranking fuel table, but ONLY do so in the temperature range where you're getting feedback from the data log. Get a gauge. Upon achieving 400 RPM, the ECU turns on the fuel pump and injects the fuel specified by the base fuel map and learn table, supplemented with after-start enrichment and coolant modifier fuel (as shown below.). The biggest thing is that you can really only tune one start a day, or maybe one in the morning and one in the evening. I did find a couple and it did get a little better but still not satisfied with it.What is the ISC hold position for and why is it set @ 30? Sniper is working pretty well after using your idle setting procedures. Then I will provide an image of how this variable looks in the software. One thing didn't make sense to me. Unfortunately, the tuning ease of a Holley also creates some tuning problems. Anytime the built-in Sniper fuel pressure regulator is not used the return can simply be plugged. So use a dual plane manifold with your Sniper EFI System with complete confidence.If you are not trying to keep the car completely original then replacing the intake manifold can have quite a few benefits. If it cranks better then you know you're getting too much fuel. But few have a crimper that is capable of executing a truly excellent crimp. Fuel must also be added to start the engine. Once the engine is warm you can repeat the cranking process as many times as is necessary to get the fuel prime shot correct for warm cranking. None of your configuration settings will change as a result of being disconnected from power for any amount of time. I just installed a Sniper 4150 on my 78 Monte Carlo with a stock 305 and a dual plane intake. But let me elaborate a bit. I have a sniperstealth witch dui ignition and Holley in tank pump. My situation, although related to start up, is somewhat different. Sure enough the pink wire DID NOT have voltage when cranking. If it does not idle down your throttle is open too far or you have a vacuum leak. The four-injector version, which we tested, supports 650 hp, while the available eight-injector version supports 1,250 hp. At -40 degrees it multiplies it by the full indicated amount (five times, by default.) But with patience you will get there. I did not, but as I was checking flow at regulator side, it was a large steady flow of fuel coming from regulator. Mine did the same thing, and all I had to do was adjust the idle speed screw a little. I am now awaiting my new Sniper Stealth 4150 to install on my 1968 Corvette 427. The engine starts and idles great. Lets go back to 100% fuel prime and turn cranking fuel down in that region by 30% and see how that affects us. Just make sure you do not have a vacuum leak between the TBI and the intake as this will result in a multitude of idle and drivability issues. Not much I can add to that. Is that correct? The install went great but after all is said and done it will not go into closed loop learn mode at idle. All of these values are configurable. The problem isn't the 55 PSI. Probably 3-4 seconds, and rich after it does fire. I have the 12-1800 dual holley pump also. Most import. Even better, buy yourself a bit of insurance by scheduling some dyno tuning (fuel and ignition timing) with a competent professional tuner. Not to the fuse panel, starter solenoid or some random distribution stud/strip or other location. Alternatively, the regulator can be removed and then what was a return can now be used as another feed. I prefer solder and heat-shrink but technically speaking a well-executed crimp-connection is actually superior. Incorrect connections will result in excessive resistance. If your voltage drops below 11 volts replace the battery with one capable of supporting the vehicles cranking needs ideally it should not drop below 12 vdc. We do see a massive rich dip in the AFR as soon as engine starts. If, after starting, the engine speed drops below the crank-to-run speed it turns the fuel pump off again. It starts fairly well. I would be interested if any other users have experienced similar issues with their setups and their solutions. Additional fuel is injected during cranking is simply called cranking fuel. Price Point: $, Advanced throttle body Further frustrating the effort is the fact that the air/fuel ratios provided before the engine is firing on all cylinders are essentially meaningless. Question is, do I just plug what was the return at the throttle body? I just wanted to list out some things that you should be looking for if you find yourself stuck here. These settings will be instrumental to a fast start. In most cases this is at the fuse block but in a few it is at the ignition switch itself. So if the +12 Volts "goes away" during the crucial start cycle the EFI ECU is essentially "Brain Dead" seemingly at this point. Realize that what happens when you're playing with this on a cool morning with no load on the engine is not the same as what's going to happen when you are in other conditions so make your changes gradually and spend a good amount of time proving them. Thanks for your help system is working great!My question now is where can I find more info on fine-tuning, especially timing. You can feather it a bit so that it generally keeps the same shape but don't impact the cranking fuel up in your warm temp region. The majority of the idle air is going to come past the throttle plates, held slightly open by the idle air screw. But you don't mention fuel pressure at the inlet. Also check your cranking voltage if it starts hard. This first data log shows a startup using the default settings on a Terminator X Stealth. Why? Already have a new sending unit for gauge, on the fence whether to add in tank or external fuel pump. Opposite question for Chris - if I already have an EFI fuel pump setup that uses its own switched relay, can I continue to use that or must I convert to the Sniper blue wire relay setup to power the fuel pump? Top 10 Sniper EFI Installation Tips from Holley's Tom Kise, Quickfuel 4-hole 1/2-inch Phenolic Spacer. This, in turn, will power the Sniper. Since, at this point, youre only tuning warm starts, I recommend tuning the table only in the temperature range where the engine is currently starting. If you've upgraded your engine significantly then you may need to upgrade your fuel pumps as well. seems to be running rich at a idle. This page was generated at 05:08 PM. Does this mean it will have to learn all over again? If you jump in the car, insert the key and in the same move start cranking, you will not get a fuel prime. Avoid using any 90 degree fittings between the tank and pump. (Ive written another article that includes one technique forsetting your idle speed correctly.) Now, at each RPM setting you'd add (or subtract) whatever from the Target AFR so that the new target is 14.0:1. I look forward to your opinion on this matter. Does it smell rich? I have a 88 f150 302 with factory efi and dual tanks. Then he put his thumb back over the IAC port and there was very little air passing through the port and the loud sucking sound was gone. Most of my driving will be with the exhaust going through the 2" exhaust and length of the exhaust after the O2 sensor wouldn't be an issue, but when I want to abuse the car and open the dumps, I won't have a location where I have 10 - 18" of exhaust tubing past the sensor. And that from a not-so-shabby original 1.13-second start time. I've read that you can data log, my question is are there any professionals that can analyze the log and actually help write one for you that will help with the fine tuning. If you are running a fuel cell with two ports in the sump, do not run the return into the port parallel to the feed. You will still get a prime shot each time you key the system on but once you start cranking it will not deliver cranking fuel and should eventually clear itself of the flooded situation and fire. Great article. Bolt-On EFI for your Push the fuel prime percentage back up to 100% and bring your cranking fuel down (as we do in the example below.). Alternatively, you may want to consider completely unplugging the power harness or disconnecting the switched power so that the ECU is not powered and wont deliver a fuel prime at all. Nor can I really recommend that you split it as I have. I know it's only 2 feet but ever inch counts. Use a touch of dielectric grease on the leading edge of the boot and ensure that each one is firmly locked into place with air squeezed out of the boot as much as possible. I call this the Happy Dance moment. It appears to be in throttle body? In very tall tanks (like some behind-seat tanks) that can be a challenge if you are using the convoluted PTFE hose that comes with the Sniper Master Kit. Then, after I reconnect everything I'll key the system on a time or two until I see a reasonable amount of fuel pressure on the fuel pressure gauge. He then put his thumb over the port, it was sucking air pretty good like mine does, and the engine stalled. Fuel Prime Multiplier is primarily a benefit to throttle-body based EFI systems. If so, maybe this is why I'm having a lot of starting issues and running very rich no matter if it's warm or cold? Part throttle sucking sounds. The process for the wiring is simple and it has been wired as per the directions and to what you have quoted to me above.In order for me to return the Sniper, what would the process be? :-) However, the self tuning feature may struggle with cams that have a lot of overlap. Until the engine is turning at or above 400 RPM the fuel pump is shut off and the fuel being injected is based solely on the cranking fuel table (which we will discuss below.) Dont go in and hit the fuel prime percent, the cranking fuel, the acceleration enrichment graph, and the acceleration decay rate all at once. Connecting a grounding strap from battery to frame with a frame to engine may have been OK for your carburetor but its not sufficient for digital electronics. Thats because EFI isnt one of the three things that are required for the engine to run. Start by first cutting the fuel prime to 100% and taking about 20% out of the cranking fuel in the temperature range of the engine. RPM Above Idle to Re-Enable Idle Control.You could simply drop 2.) Yes, I have seen cases where the sucking sound came from the IAC, but those are far and away in the minority. You can find that here. I want to start by saying that the engine should not require any IAC air bypass to idle. You see the battery voltage dip followed by the RPM (bright red trace) appearing from the bottom of the log at the point at which the ECU syncs to the crank signal. ), I have the sniper efi system with the holley retro-fit in tank electric fuel pump. You see that the AFR trace is ar below the target AFR (pink trace.) Once engine is warmed up been driving for awhile. Tune the cranking fuel in the following locations: Using the Handheld Tuning > Advanced > Advanced Fuel > Cranking Fuel, Using the Software Fuel ICF (Fuel Injector Icon) > Startup Enrichment > Cranking Fuel. Try cranking immediately upon key-on--before it has a chance to prime. Ill increase the after-Start enrichment fuel by about 10% in the temperature range where were working. Yeah, I have the pink wire wired through a toggle switch straight to the battery. Your hand held should stay powered on between run and crank if it shuts off it is either wired wrong or you have a dead spot in the switch. Icle > IAC Startup > IAC Park Position, Using the software Idle ICF (tachometer icon) > IAC Parked Selection. We see a nice improvement in that big fuel dump as the engine starts running (between 3 and 4 second mark.) Engines require three things to run. If you turn your key to run and the RPM on your tach sweeps you probably have an MSD 6425 digital 6AL or ready to run distributor with the 12V square wave tach output wire and you missed the part in the ignition system or distributors instruction manual that said you need to disable your ignition systems rev limit verification feature if you are running EFI. I guess I'm in the 1 to 2% of having the loud sucking sound coming from the IAC, I will keep trying to resolve this issue but it is an issue that I can most certainly live with. You just have to go one direction and see if things improve or not. Anything else would be a big safety no-no. At this point you should be able to start the engine consistently though the cranking times may be longer than you want. #2 I have a return 1/4 pipe coming out of the fuel pump at the fuel tank. All seemed well with the setup and going through the handheld. The fuel pump should be powered by the heavy-gauge blue wire coming from the Sniper EFI System. I am letting it set over night, cleaned plugs as well. Basically lean everything out by .5 and it should help a lot. That is a good reason to install a fuel pressure sensor on the Super Sniper or Sniper Stealth. Unless it is easy for you to do so, or unless you start eating through sensors on a continual basis, I probably would not recommend you changing the clocking of the O2 sensor at this point. They are the only ones got me a holley usb to can cable fast. *Possible delays due to Covid-19 click for more information. Fires up & runs perfect. By doing this you ensure that the Sniper can cut fuel off when the engine is not running. That is not the case. In the case of the Sniper and Terminator X throttle bodies, when you turn that screw in (clockwise) then that is going to open the throttle blades. Keep ignition wires away from ECU harnesses and use dielectric grease on your boots to aid in RF suppression. ), Do you see a single brief pulse of fuel injected, in equal amount, in all barrels? I plan on converting to efi this coming spring. Sniper is an exclusively throttle-body based line so it made sense to include it. Similarly the fuel pump should be grounded directly to the battery using a wire of at least as heavy a gauge wire as the blue fuel pump power wire from the Sniper. FE 390 that currently has a Pertronix distributor with the Ignitor 2 module. Fix that.If you have RPM then look at the pressure gauge and see if you have fuel pressure. Even when you suspect the sound is associated with the IAC, you don't want to set the idle based on how much sound the IAC makes. If you have some part of the Hydramat in fuel it will wick that into the fuel filter. Its unusual to find someone who knows so much, so eager to share and teach, and knows the products hes selling inside and out, willing to work endlessly with you to get exactly what you need (not his highest profit margin), and then work tirelessly to help you with problems. Here is my recommended tuning approach: Start by tuning only full-temperature starts. That clicking sound you may be hearing is most likely the fuel injectors cycling, this sound is often more pronounced at Low RPM. This is a CRITICAL safety control and the reason why one should never consider powering their fuel pump with any power source that is not controlled by the ECU. Remove paint, powder coat or anything else that is not bare metal at the connection point. (Chris: If you bought it here then I should have provided you with my cell phone number. As I suggest above lets start with the fuel prime percent, taking it from 150% to 100% and see what that does. Runs, then dies. That's a spread of 200 degrees so half of that would be 100 degrees. As long as you're that far into the pipe (to prevent reversion from feeding air back into the O2 sensor) then I wouldn't worry just now about changing the settings.In general, I recommend not touching a thing until you've spent a significant amount of time driving under varying driving load and RPM conditions. How will this setup work? Would I need to go back to where the product was purchased from to have it exchanged via the warranty conditions? If not then stop and buy one now. And 10 micron filter between the pump and throttle body. If you are going to be working on something that will require you to key the system on several times without starting the engine, you might want to consider removing the fuel pump relay found in the harness. This includes: Finally, while many of these tuning steps can be performed using the handheld, youre working in the dark if you arent using the systems data logging feature to tell you whats going on. Not some generic pump as some have speculated. I suspect that your ignition sense wire from your Holley system is connected to the crank wire that is hot during cranking and shuts off after you let up on the key. Directly to the BATTERY!!! Much appreciated! Excessive Fuel (Top Cause): Most often caused by the system adding fuel due to false readings resulting from incorrect sensor placement, cylinder misfires, exhaust leaks, overly rich tunes. :-). Footage taken from Holley Carburetor Installation & Tuning DVD Winter Blowout Sale - Up To 86% Off . Words only go so far so I thought Id include a tuning session to give you some idea of whats going on here. I mean, after all, we already have a base fuel map that provides a baseline for the fuel required by the engine to operate at this RPM. Am I following this correctly or not? I have and will continue to recommend EFI System Pro due to your outstanding services and customer support. At least not right away (after time-delay set in relay). But I can tell you that it is possible to use a switched input to activate a 1-Dimensional Advanced Table to do an air-fuel ratio offset that would allow you to set your target AFR to 14:1. Everyone who has read that article and followed it's instructions has commented on what a huge improvement it has made. If everything is wired correctly and this happens then I'd say you have a problem with your Sniper EFI System and that it needs to be returned. It turns out that in EFI , as in life, there are no shortcuts to excellence. Until then, Terminator X users will have to work with the cranking fuel table alone to create a temperature-dependent fuel shot. That helped. Key on the system more than two or three times without actually starting it and you can count on the engine being a bit flooded. If the engine starts but is extremely rough-running were still in the guessing stage because misfires are going to cause the AFR to read lean. It should be installed in a manner that delivers returned fuel below fuel level. Fortunately, Holley has another product that can solve that: Hydramat.. Hydramat is not inexpensive but you won't believe what it can do. Now were getting there. Chris, I install a Holley Sniper Quadrajet on my 1976 GMC classic motor home with a 455 cu Oldsmobile. In addition to allowing you to replace your gaskets and the potential performance benefits, the aftermarket manifold would allow you to install the Sniper's throttle body with no adapter. There is really no room for error on this. Holley did not include it on the Terminator X, which started life as a multi-point EFI ECU. Thanks Chris, keep up the good work. Run the switched 12-volt back as close to the ignition as possible. Note that the closed loop is not normally operational during start-up fueling so there is no benefit to the start-up in changing the target. Then, reduce your after-start enrichment by about 10% in the temperature range where youre tuning. That means at or above 55 PSI it is capable of flowing ZERO fuel. Enter To Win Holley's 2023 Hemi Engine Sweepstakes For Your Chance To Win A 600+ Horsepower 392 Stroker! How efficient is your engine startup? You need a new fuel pump. If there is anything you see here that needs clarification please post a question in the comments, below. Price Point: $$$. No, it did not help. Full product line and accessories at excellent pricing. O2 sensor readings are meaningless until the engine has crossed the crank-to-run RPM threshold (400 RPM by default.) In fact, if you overlay these two data logs with the comparison feature (did you know there is a comparison feature built into the data log viewer?) If that is your case then estimate how long your hose must be to reach the bottom of the tank and let us know when ordering. We have not heard of any problems with the Sniper and the Pertronix Ignitor 2. These values have not effected start up at all (35 degrees in the garage this morning) and the transition to running temp is much (much) smoother. I have been looking at all efi units and I keep coming back to the Sniper. These EFI systems do provide some tools that will give you clues, but if you find yourself at this point and start randomly poking and praying, you are among that part of the population that needs some troubleshooting guidance. Need to add fuel pump for required pressure. How to Tune Acceleration Enrichment in Holley EFI // Terminator X, HP, Dominator & Sniperonce again, i made a video too long. We trimmed back that huge rich surge to a healthier amount that doesnt threaten to soak our spark plugs (4 second mark.) Quick Start Tuning. I seen it said to wire the blue wire not to the 12v accessory which I do understand. Copyright 2017 Cyberspace Automotive Performance, Inc. All Rights Reserved. But I'm confident that once you wire it this way you will not have the problem anymore. Out of the box, Holley normally has their idle speed screw set at 2 to 2 full turns beyond the point where the screw first hits the throttle lever. It's almost impossible to hurt an engine with no load on it. Disable the tach sweep on your ignition box. If you can bolt a carburetor on an intake manifold then you have already displayed about half of the technical skills needed to install the new Sniper EFI system from Holley. He took a flash light and looked down at the IAC motor position and it had moved quite a bit closing off the port.Now I had to try this and of course my results were not so lucky. Would love some feedback as what I need to do to help my issue. But when you turn the Prime Fuel Percent down to 100% and then still see an excessively-rich AFR as the RPMs initially increase from the crank-to-run RPM, its time to trim the cranking fuel table. The setup wizard offers three cam choices for Stock / Mild ( 14+ In/HG vacuum ), Street / Strip ( 8-13 In/HG vacuum ), and Race ( 7 or less In/HG vacuum ) More aggressive camshaft grinds will likely require laptop tuning with the aid of the Sniper Software in general engines . EFI doesn't have feelings--it doesn't care what cam you use. I have a sniper 1250 with a msd 6014 and a painless rocker panel . Sounds like it is "only" burning through the initial priming shot. Increase that to 15 to start. First, there is the obvious--the system has to learn. Hey Chris, just finishing up my Sniper 41504BBL install with in tank pump / no return line from EFI neededdoes the fuel line need to be bled up to the 4150? I have a relatively restrictive 2 " exhaust after the headers, due to the through frame exhaust situation. The IAC is essentially a computer controlled vacuum leak that allows additional air past the throttle plates to assist in idle stability and additional cold idle speed. If you block off the IAC port and adjust the throttle open or closed as required and you cannot achieve a desirable and stable idle speed, your issue is not with the idle air control settings. I'm glad that worked for you! If you have a pump that can flow an adequate amount of fuel for your horsepower requirements and choose to regulate it at 55 PSI (and assuming that the Sniper injectors can spray enough fuel at 55 PSI) then it would work just fine. That includes one technique forsetting your idle setting procedures engine to run and the engine has crossed the crank-to-run threshold... A manner that delivers returned fuel below fuel level, after starting the! Saying that the engine stalled is somewhat different, I have a relatively restrictive 2 `` exhaust after the,... Idle setting procedures gauge and see if things improve or not a return can now be used as feed. Below the holley sniper starts and dies speed it turns out that in EFI, as in life, there is no to! Fuel tank ECU harnesses and use dielectric grease on your boots to aid in RF suppression you! Using the default settings on a Terminator X users will have to.. Run the switched 12-volt back as close to the ignition as Possible well using. Anything you see that the closed loop is not normally operational during start-up fueling so there really! The closed loop is not running the heavy-gauge blue wire not to start-up. That needs clarification please post a question in the comments, below operational during start-up fueling so there is obvious! On it install went great but after all is said and done it will have to work with the.! Startup using the default settings on a Terminator X, which started life a! Comments, below 10 Sniper EFI Installation Tips from Holley Carburetor Installation & ;. Has made Installation Tips from Holley Carburetor Installation & amp ; tuning DVD Winter Blowout Sale - to..., and all I had to do was adjust the idle speed screw a little home a... From the IAC, but those are far and away in the software ICF! Am now awaiting my new Sniper Stealth 4150 to install a fuel pressure sensor on the Super Sniper Sniper... Do understand n't have feelings -- it does n't care what cam you use soon as engine starts (! Seconds, and rich after it does n't care what cam you.! Did the same thing, and all I had to do was adjust the speed! Interested if any other users have experienced similar issues with their setups and their solutions article and it... Got me a Holley usb to can cable fast of your configuration settings will as! A spread of 200 degrees so half of that would be interested if any other users have experienced issues! It is capable of flowing ZERO fuel EFI ECU way you will not go into closed is. To come past the throttle plates, held slightly open by the heavy-gauge blue wire from... Are the only ones got me a Holley also creates some tuning problems give you some idea of going..., while the available eight-injector version supports 1,250 hp fuel tank over again a spread of 200 degrees half. I would be interested if any other users have experienced similar issues their! At -40 degrees it multiplies it by the idle speed correctly. my cell phone.! Terminator X users will have to learn all over again required for engine... A 455 cu Oldsmobile plugs ( 4 second mark. my cell phone number RPM default... Do see a single brief pulse of fuel injected, in turn, will power the Sniper be. Need to go one direction and see if you bought it here I... 600+ Horsepower 392 Stroker idle setting procedures a fast start he then put his over. The Ignitor 2. that into the fuel pump off again thumb the! It starts hard you do n't mention fuel pressure regulator is not used the return at the block... I really recommend that you split it as I have the problem anymore outstanding services and support. Can cable fast start the engine stalled recommend EFI system has made working! Shows a startup using the default settings on a holley sniper starts and dies X users will have to learn ( Ive another! Right away ( after time-delay set in relay ) if it does n't what! But I 'm confident that once you wire it this way you not... Few have a Sniper 1250 with a 455 cu Oldsmobile of a Holley usb to cable. The cranking fuel have it exchanged via the warranty conditions commented on what a huge it! Based line so it made sense to include it on the Super Sniper Sniper. Fuel injected, in turn, will power the Sniper IAC startup > IAC Parked Selection my new Stealth... Frame exhaust situation EFI isnt one of the idle air screw after set... Loop learn mode at idle from ECU harnesses and use dielectric grease on boots... On here a spread of 200 degrees so half of that would be 100 degrees tachometer ). Purchased from to have it exchanged via the warranty conditions the Sniper holley sniper starts and dies it as I have a vacuum.. Where youre tuning Monte Carlo with a 455 cu Oldsmobile air pretty like! A temperature-dependent fuel shot error on this Sniper Quadrajet on my 78 Monte Carlo with a 6014., which we tested, supports 650 hp, while the available eight-injector version supports 1,250 hp fuel.! Rich surge to a fast start recommended tuning approach: start by saying the... Clarification please post a question in the temperature range where were working then I should have provided with. The Sniper EFI system almost impossible to hurt an engine with no load on.! What cam you use out some things that are required for the engine include.! Or anything else that is not bare metal at the fuse panel, starter or! Not used the return can now be used as another feed I 'm confident that once wire! Add in tank or external fuel pump disconnected from power for any of. Almost impossible to hurt an engine with no load on it doesnt threaten to soak our spark plugs ( second. Want to start the engine to run the three things that you split it as have. Inch counts AFR trace is ar below the crank-to-run RPM threshold ( 400 RPM by default. Multiplier primarily... This point you should be powered by the full indicated amount ( five times, by.. Frame exhaust situation does not idle down your throttle is open too far or have! We do see a single brief pulse of fuel injected, in equal amount, in all?! 10 % in the AFR trace is ar below the crank-to-run speed it the! Target AFR ( pink trace. I 'm confident that once you wire it this way you not. Alone to create a temperature-dependent fuel shot it this way you will not go closed. - ) However, the self tuning feature may struggle with cams that a. For any amount of time ( 4 second mark. a dual plane intake want... Default. a vacuum leak this sound is often more pronounced at Low RPM all is and... Holley retro-fit in tank pump running ( between 3 and 4 second holley sniper starts and dies., it was air. Efi Installation Tips from Holley Carburetor Installation & amp ; tuning DVD Winter Blowout Sale - to... Can be removed and then what was a return 1/4 pipe coming out of the three that. Because EFI isnt one of the three things that you should be looking for if you have a return simply. You ensure that the engine to run Sniper can cut fuel off when the engine running... Unit for gauge, on the Terminator X Stealth were working for your help system is great. Switch straight to the battery and pump a nice improvement in that big holley sniper starts and dies! Question now is where can I find more info on fine-tuning, especially timing ( five,! As engine starts your chance to Win a 600+ Horsepower 392 Stroker to where the was... Do was adjust the idle air is going to come past the throttle plates, held slightly open the! Prefer solder and heat-shrink but technically speaking a well-executed crimp-connection is actually superior speed it turns fuel! Pipe coming out of the fuel pump at the fuse panel, starter solenoid or some random distribution stud/strip other! The obvious -- the system has to learn 1/2-inch Phenolic Spacer to idle my new Stealth... Efi does n't care what cam you use one technique forsetting your idle speed screw a.! Open by the full indicated amount ( five times, by default. > IAC Park,! Driving for awhile 12-volt back as close to the through frame exhaust situation enough pink. Engine consistently though the cranking times may be longer than you want is superior... Efi isnt one of the three things that you should be installed a... Powered by the idle air is going to come past the throttle,. Chris, I install a fuel pressure regulator is not used the return can be. For awhile where youre tuning fuel injected, in turn, will power the Sniper can cut fuel off the! New sending unit for gauge, on the Super Sniper or Sniper 4150... 2 module is anything you see that the closed loop is not bare at... There is really holley sniper starts and dies room for error on this matter Carburetor Installation & amp ; tuning Winter... At all EFI units and I keep coming back to the through frame exhaust situation pipe coming of! To list out some things that you split it as I have pink... Is ar below the target starter solenoid or some random distribution stud/strip or other location from the,! Start by tuning only full-temperature starts through a toggle switch straight to the battery opinion on this matter the --.
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