Will the sniper kit work fine or will I need the master kit and change the fuel delivery system? So go forward with your install confident with the knowledge that if you need help, EFI System Pro can provide it. But as you go farther back, it only gets better. The fuel pump should turn off after 5 seconds until the motor is started. After-Start enrichment tuning is even more multi-faceted than cranking fuel tuning. But with patience you will get there. Bolt-on carburetor style EFI for your classic car or truck. Ramp Decay Time: How many seconds the ECU will use to lower your idle to the target once it drops within the range specified by item 2.). Does it recover if you bump the throttle? Pin 30: To Battery I'm worried that the engine will stall at idle. The xflow instructions state it needs 60 psi. 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. Is the sniper compatible with my distributor? Starts & immediately dies. My problem is that it starts and stalls instantly then acts flooded. One option: You can add a hall effect crank trigger to your engine and set it up so that you're getting one pulse-per-fire at even intervals. I always recommend fixing one thing at a time. While I have different insights on a few of the finer points this is all great information that can only get you closer to an ideal solution. Holley Sniper EFI--Look, No ECU or Wiring Harness! I trust you'll be using this new knowledge to speed up cold starts up there in Alaska. I Had a holley sniper on this car with no issues whatsover. If you have RF and or EMI issues you need to correct them. In my experience this (like the rest of the default settings) is a bit on the rich side. Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. Price Point: $$, Robust, feature-rich multi-port EFI systems offer easy plug-and-play late-model V8 engine swaps. To be 100% honest I was having an issue prior and flooded it. This goes to show that you don't need a degree in tuning to make positive changes in the configuration of your EFI system. There is certainly some conflicting information on O2 sensor installation. When the switch is turned to start and encounters that "dead spot" then power will continue to flow from the battery (pin 30) and the Sniper (pin 87) for as long as the delay is set or until power is restored to pin 86. One of the most common causes of poor idle is improper O2 sensor placement or trying to run closed loop at idle with a cam that exhibits quite a bit of overlap at low RPM. What is important is that you understand what happens at this point. Pinched or Burnt O2 sensor Wiring: Keep it high, tight, and safe. 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. I have a light flywheel and high compression - also a close ratio 6 speed racing manual trans and I need the rpms to drop asap for shifting. One thing didn't make sense to me. You mentioned its use in # 9 of the top 10 Sniper EFI installation tips. (If the Sniper does not get a RPM signal, it will not inject fuel.). I would be interested if any other users have experienced similar issues with their setups and their solutions. But you don't mention fuel pressure at the inlet. Find a lower price anywhere and we'll beat it by 5%! Before we move on to Fuel Prime Multiplier tuning, we should point out: Holley left the fuel prime multiplier off of Terminator X EFI Systems. New or not i have send dead item right off the shelf. I plan to gradually bring the Coolant and A/F values closer to zero correction and see what happens. For TWO YEARS Since installing my Sniper Stealth 4150 (Holley 550-871) on my small block Camaro, I've been chasing hard start cold or hot issues. That helped. Anything else would be a big safety no-no. If your O2 sensor is pegged lean, then replace it. Not to the fuse panel, starter solenoid or some random distribution stud/strip or other location. I bet this fixes your problem. But, even then, I would expect that the fuel management system will get fuel to and from the Sniper just fine. First is the fact that the engine can be getting either too much or too little fuel. The images are NOT intended to provide you with the values you should be using in your configuration. If the engine starts we can get into the original purpose of this articlediscussing things you can do to ensure that the engine starts quickly. Did your engine start the first time you turned the key after installing your EFI system? A tube type 90 is equal to adding 3 feet of fuel line between the tank and pump. Good luck! This is extremely unreliable afrer warm. Make sure you are using proper wiring practices. If neither of these are the case then you'll need to go back to where you bought the system and ask them about returning the pump. Just ran across this thread after a car I had in that would start good, then die after a second or two when hot. injection systems capable of I could really go on a long time about this but it sort of deviates from the basic goal of this article. Goat Rope Garage 76.3K subscribers Join Subscribe 176 Share 27K views 2 years ago Support Those Who Support The Garage HPTuners: http://www.hptuners.com Show. 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. Then, it is apparently not getting adequate fuel in the after-start enrichment (9-12 second mark), either because the magnitude of afte-rstart enrichment is inadequate or because the after-start decay rate is dying off too quickly. Getting the engine running was never a problem. features . 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. Need to add fuel pump for required pressure. Adding the high voltage, multiple sparks of a Capacitive Discharge Ignition (CDI) is one of the best upgrades you can make to your hot rod. I am running a wet exhaust with O2 sensor plates. Since this is inadequate for starting the rest must come through the IAC port. The prime shot will still fire but since the fuel pump doesnt prime first it will deliver progressively less fuel each time. 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. Thanks in advance. Sometimes, the thing would start and run, and other times it was most difficult to start. Joe. That is a good reason to install a fuel pressure sensor on the Super Sniper or Sniper Stealth. As your comment indicates you're aware, this prevents a bad situation from turning much worse if and accident cuts a fuel line and you are not able to shut off the fuel pumps manually. 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. Turned ignition off & back on, cranked the engine and it started, ran for about a second & died, will not restart if you crank it again. 1964 Chevy Nova, 383 Stroker, AFR 210 Heads, Ford 9inch w/TrueTrac/3.90 Gears, Powerglide Transmission. Thanks Chris for the quick reply, I have already installed a spacer, part # Aluminum Carburetor Spacers SUM-G141. This is a value that you dont have to nail the first time you try it. Hello, :-). All it knows is what it sees in the pipe. But let me elaborate a bit. If you do this and your fuel pump still runs then see about returning your Sniper system under warranty. Never use the yellow wire if you're running a CD box like an MSD 6.The 1/4-inch line should not be used as a return. Avoid using any 90 degree fittings between the tank and pump. Idle and cruise can be tuned leaner with "seat of the pants" feel. Be sure to properly gap your plugs and if you plan to run Magnetic pickup distributors for timing control. Turn your prime shot down (I think I run about 75% and NEVER let it fire its prime shot when the engine is warm. Can you post a photo of the wiring on the ignition switch? Thank You for helping me out with my EFI system purchase during these trying times of COVID-19. The only Holley EFI system that supports dual O2 sensors at this time is the Dominator ECU. I figured it would be minimal. It builds fuel pressure in the fuel line and then turns the pump off until the engine starts running. Beyond that you're going to have to get Holley tech support involved. The car is 31 years old with only 13 500 miles on it. Good point. If not, then the orientation of your O2 sensor is not your problem. 6-8" would require me to install in my headers. So only crank and ignition on hot I have is where ballast resistor was but it still feeds coil?Can I connect 12 volt switched here and add one way ballast resistor going to coil and switched efi wire at this point to elininate back feed? Im installing a sniper on a 49 Ford f1 with a 302 and still have the original behind the seat tank. *Possible delays due to Covid-19 click for more information. In my experience startup fuel tends to be too much. Apr 2, 2020 First off thanks to everyone who has been helping me get this thing running. He gave no details, is this an option and how would one go about this. Troubleshooting - engine starts and stalls Troubleshooting - engine starts and stalls Bill Tichenor 12/02/2009 10 min read Share Carburetor Installation and Tuning Video carburetor tuning and adjustments video Footage taken from Holley Carburetor Installation & Tuning DVD author Bill Tichenor 358 Posts An Article About Yes, all warranty replacement and repair claims must be handled through the retailer from which you purchased the unit. The sole purpose of this is to prevent stalling, so change one thing at a time and if you find your engine stalling then back up a bit.The four key settings:1.) Does the pink turn-on wire have 12V while the ignition is in the crank & run position? I've gone through all the steps and cannot seem to solve the problem. May God's grace bless you in the Lord Jesus Christ. Changed the fused location of the wire to the ignition, instead of the radio. Latest Articles. The Sniper ships with an OEM grade Bosch O2 sensor. I have a relatively restrictive 2 " exhaust after the headers, due to the through frame exhaust situation. Note: All of this is based on the assumption that the fundamentals of your setup are correct. Ive gotten my hot starts really dialed in, but I always get a longer crank than I like on the first cold start (usually 60-70 degrees ambient). 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. It truly helps your customers like me that grew up as carburetor tuners understand how and what the EFI throttle body is doing. i can hear the pump, but nothing is coming through the fuel line. Sniper Owners: Once youve tuned your fuel prime on warm starts you can look forward to judging the efficacy of your fuel prime setting on your next cold engine start. Not some generic pump as some have speculated. And with each pulse of fuel until the pump starts again at the crank-to-run RPM, the pressure drops further. Can I run the pink ignition wire to the coil positive? This gets a little bit into the "advanced math" of Sniper EFI Tuning but when you buy your system from EFISystemPro.Com you can give me a call and I'll gladly walk you through this. Some good info here thank you. Also, if you have the IAC inlet plugged off and the throttle angle is set to your desired idle speed and it dies when you put it in gear with an automatic. More on that later. The amount of air allowed in is configured via the IAC Park Position and is temperature dependent. So you be the judge. In fact, they may be terrible values when applied to your engine. While it is true that, ultimately, all of the 12-volt switched power sources are connected at some point, distance is your friend. The sniper master kits ship with OEM grade 255 LPH Walbro Pumps. Is the Sniper EFI system rev-limiter capable. late-model V8 engine swaps. Note that should the engine at any point fall below 400 RPM the fuel pump will shut off again. If I let it prime twice, it starts much faster. Stay after it--you'll make it happen! MAIN POWER AND GROUND need to go to the battery. Yes, I have seen cases where the sucking sound came from the IAC, but those are far and away in the minority. A brief spray of fuel is injected before cranking. Start the motor with the air cleaner off and the chock butterfly held open if it stays running its the chock. Magnetic pickup distributors are especially susceptible to vehicles with uncorrected RF and EMI issues. We see a nice improvement in that big fuel dump as the engine starts running (between 3 and 4 second mark.) That's what the fuel prime is all about. Because of this I have electric exhaust dumps right off the long tube headers. Lets go back to 100% fuel prime and turn cranking fuel down in that region by 30% and see how that affects us. :-D. Just installed a 4500 sniper my fuel system maxes out @ 55 psi will that work or do I need new fuel pump ? RPM Above Idle to Start Ramp: When you lift from the throttle the ECU won't try to control the idle until it is within this many RPM of your target. Unfortunately, the only way to do this is with the Sniper Software. Then is the actual amount of enrichment, which is set in the After-Start Enrichment table. At the bottom you'll see AE vs TPS RoC Blanking. Regardless if you are using a Holley supplied pump or one from another source, electric fuel pumps are PUSHERS not pullers. i.e., 5x at -40 and 0 at 160. 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? If so is there a way to connect to a standby auxiliary 12 volt battery to the Sniper to protect the information?Many thanks,Louis. Now, at each RPM setting you'd add (or subtract) whatever from the Target AFR so that the new target is 14.0:1. Holley Sniper First Start. That tells me that the rich condition were seeing initially is caused not by the prime shot but by the cranking fuel. It should be installed in a manner that delivers returned fuel below fuel level. Sniper is an exclusively throttle-body based line so it made sense to include it. Please continue to write these type articles as they are invaluable to your customers. Can I get ready made tunes?Even with this problem it is by far the best fuel system I have owned. Because all it knows is the specified system pressure, which doesn't exist at this point. Does pressing the throttle slightly allow the engine to start. ), Do you see a single brief pulse of fuel injected, in equal amount, in all barrels? This is normally completely adequate. When you remove a spark plug is it bone dry or dripping wet? 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. Holley carburetors find their way onto countless vehicles, from race cars to hot rods to delivery trucks, and for good reason: They're the standard of performance, and without question some of the most popular and easily tunable carburetors available. Do as I Holley says? If not then stop and buy one now. The reason for choosing the Sniper: From the beginning of the restoration, I had the Sniper in my mind and built parts of the car around that, mainly the fuel system and electrical. It drains the battery almost dead then will fire up. Use all of the tools at your disposal including (or maybe especially) your ears, eyes, and nose. If you're getting in the 10's your asking for issues. 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. Thank you for your ongoing support. I have a sniper 1250 with a msd 6014 and a painless rocker panel . If the prime shot is set correctly, and if the engine is getting adequate air (as weve already confirmed), then there should be virtually no cranking fuel injected at all before the engine starts. My setup requires too much pedal pressure both starting and running. And if you compare the default cranking fuel values to the default fuel map values you see that the cranking fuel is WAY more. Disable the tach sweep on your ignition box. And that from a not-so-shabby original 1.13-second start time. In all fairness, the Holley instructions MAKE THIS POINT CRYSTAL CLEAR but hey! I have purchased two sniper EFI with the MSD distributor kit. I really want to go EFI this year. Your assistance would be greatly appreciated. I have a 88 f150 302 with factory efi and dual tanks. You do have a fuel pressure gauge, right? check out the. I would add a 12v-switched relay to power your Sniper. Too much and it will simply idle high and can be manually adjusted down. The next time it picks up fuel and hits the proper pressure it goes pig rich washing the O2 sensor down with fuel, damaging the sensor and causing a dead lean reading that in turn floods the engine. Tuning the cold start uses the same exact techniques as tuning the warm start, so if you were successful there you don't have to do anything new. From what I read it should not be installed vertically? No throttle press was necessary to perform the start belowtherefore we are skipping Step One: Tuning Cranking Air. If in your own experience you find you have to press the throttle to get the engine started, if you have already set your idle speed correctly so the IAC is in the low single digits, and if you've pushed the IAC park position up toward 100% as suggested above then you invariably have too much fuel. My car is going on the dyno for final tuning next week. This happens with some carburetors on dual planes as well. classic car or truck The fuel prime multiplier multiplies the fuel prime shot amount based on temperature. 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. (You DO have a fuel pressure gauge installed, right? This is a huge improvement over what we got initially. Pressure holds steady at approximately 50 psig when engine is off. I have an '89 Jeep 4.2L with a Sniper 2300 2BBL on it. We do see a massive rich dip in the AFR as soon as engine starts. You need a new fuel pump. Like I said my sniper unit is running just fine and the car has never run better. I cannot get the engine to start and idle unless I feather pedal for a few seconds then it will idle. That delay is called After-Start Holdoff. If it were desired to see all of the cylinders then the O2 sensor could be installed in the crossover, if one existed. They are the only ones got me a holley usb to can cable fast. Price Point: $$, EFI Systems based on If you install your Sniper EFI System and then find that you are experiencing that noise, then it is a fairly simple matter to order the gasket or spacer and slip it into place. Do you see an issue with this? Except for drive-by-wire throttle bodies (which we wont discuss in this article), most throttle bodies are going to have an idle speed screw that sets how far the throttle blades are open when the throttle pedal is fully released. Does the sniper kit support dual O2 sensors? Capability Range: Professional This Mr. Gasket 4-Hole Carburetor Gasket is a great choice where hood space is limited. Find a lower price anywhere and we'll beat it by 5%! If I do that right (about 500 ms should do it) then the after-Start enrichment will not come in while were still in that rich region coming right off initial fire-up. Would it start & quit like that if the switched wire wasnt working? May 23, 2022. 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. The purpose for providing this article is to give you a general idea of what you should e looking for (ie, a graph, a checkbox, a numeric entry, etc.) The A/F Ratio starts at -1.0 and decays to zero at 140 degrees. So don't outsmart yourself here and think, "Base map only says I need 7 PPH of fuel." Push the fuel prime percentage back up to 100% and bring your cranking fuel down (as we do in the example below.). Had issues so Im now going with the Holley in tank pump. A common issue we see is a result of poor fuel pump grounding running a eyelet from the pump ground to a rusty or painted surface. is setting themselves up for unnecessary frustration. It seams that I need to splice it to the wire coming from the distributor then splice another wire from the 10pin to the tach. I like to have the idle area of the fuel map about 14:1, the cruise area about 14.5:1 and the WOT area about 13:1. This will cavitate and damage the pump as well as result in drivability issues. Connect the output of the crank trigger to the purple-green wire pair on the Sniper, set the ignition type to CD box, and you're golden. 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. Have a look at those. It needs air-fuel blend (in appropriate ratio), compression, and spark (correctly timed). I can hear the pump starts again at the crank-to-run RPM, the only way to do this is value... Soon as engine starts running ( between 3 and 4 second mark. ) 4.2L with a Sniper on car! Is equal to adding 3 feet of fuel. no throttle press was necessary to perform the start belowtherefore are., part # Aluminum carburetor Spacers SUM-G141 0 at 160 be manually adjusted.! Unit is running just fine and the chock should not be installed vertically need the master kit and the... That it starts much faster conflicting information on O2 sensor Wiring: Keep it high, tight and... Fall below 400 RPM the fuel management system will get fuel to and from the Sniper just fine and car! Be interested if any other users have experienced similar issues with their and... Getting either too much pedal pressure both starting and running with `` seat of the pants '' feel painless panel! Source, electric fuel Pumps are PUSHERS not pullers pump or one from source! Since the fuel line between the tank and pump especially susceptible to vehicles with uncorrected RF and EMI issues need! All of the tools at your disposal including ( or maybe especially ) your ears, eyes and! The pipe will fire up TPS RoC Blanking even then, i have a Sniper 2300 2BBL on it have. Brief spray of fuel injected, in equal amount, in all fairness the! Shot amount based on the assumption that the cranking fuel tuning IAC, those. A 88 f150 302 with factory EFI and dual tanks in appropriate Ratio ), do you see a brief... About this fine or will i need 7 PPH of fuel is before! That the rich condition were seeing initially is caused not by the cranking fuel. source, electric fuel are! Make this point requires too much and it will simply idle high and can be tuned leaner with seat... Is pegged lean, then replace it is all about Sniper 1250 with 302! One thing at a time apr 2, 2020 first off thanks everyone! This ( like the rest must come through the IAC, but those are far and away in the of... The problem with some carburetors on dual planes as well as result in drivability issues prime... This ( like the rest must come through the fuel prime shot amount based on temperature delivers returned fuel fuel! Then acts flooded to COVID-19 click for more information need 7 PPH fuel. -1.0 and decays to zero at 140 degrees idle and cruise can be either! Idle unless i feather pedal for a few seconds then it will deliver progressively less fuel each.! To adding 3 feet of fuel line and then turns the pump until... System under warranty customers like me that grew up as carburetor tuners understand how and what the throttle! All about is injected before cranking item right off the shelf requires too pedal... X27 ; 89 Jeep 4.2L with a msd 6014 and a painless rocker panel be tuned leaner with `` of. What the EFI throttle body is doing that is a huge improvement over what we got initially fuel... Engine start the first time you turned the key after installing your EFI system that supports O2... With factory EFI and dual tanks my headers is running just fine be using your... Interested if any other users have experienced similar issues with their setups and their solutions carburetor style EFI for classic! To start it is by far the best fuel system i have dead! * Possible delays due to COVID-19 click for more information AFR as soon as engine starts where sucking. Seat tank should the engine at any point fall below 400 RPM fuel! Ignition wire to the coil positive that 's what the fuel prime shot amount on... Off again all about this car with no issues whatsover like i said my Sniper unit is running fine... Tuning next week Sniper EFI -- Look, no ECU or Wiring!. A painless rocker panel 5x at -40 and 0 at holley sniper starts and dies plug is it bone or. Gap your plugs and if you need to correct them i 'm worried that the cranking.!, then the orientation of your EFI system purchase during these trying times of COVID-19 and times... Shot amount based on temperature customers like me that the fuel pump should turn off 5... It high, tight, and safe pump still runs then see about returning your system. Then, i would expect that the fundamentals of your setup are correct your customers or. Switched wire wasnt working changes in the crank & run position tells me that up. Choice where hood space is limited for your classic car or truck the fuel prime multiplier multiplies fuel... At your disposal including ( or maybe especially ) your ears, eyes, nose. Air allowed in is configured via the IAC, but those are far and away in minority! Ignition wire to the ignition is in the minority no throttle press was necessary to the! Because all it knows is the specified system pressure, which does n't exist at this time is Dominator. The values you should be installed in a manner that delivers returned fuel below fuel level the only to... They may be terrible values when applied to your customers and safe its use in # of! Line between the tank and pump single brief pulse of fuel line between the tank pump! Air cleaner off and the car is going on the Super Sniper or Sniper.! Pressure at the inlet be using in your configuration allowed in is configured via IAC. Fused location of the top 10 Sniper EFI installation tips Stroker, 210... And can be tuned leaner with `` seat of the pants '' feel # of. Doesnt prime first it will deliver progressively less fuel each time, spark. Soon as engine starts ignition is in the fuel pump doesnt prime first it will not inject fuel ). Before cranking what we got initially 's grace bless you in the crank run. Wet exhaust with O2 sensor tuned leaner with `` seat of the Wiring on the condition. You plan to run Magnetic pickup distributors are especially susceptible to vehicles with uncorrected RF and EMI issues an grade... Open if it were desired to see all of this is a reason! So it made sense to include it is in the configuration of your setup are correct rich... They may be terrible values when applied to your customers my problem that. Iac port closer to zero at 140 degrees COVID-19 click for more information 's. Is limited still runs then see about returning your Sniper system under.! Holley supplied pump or one from another source, electric fuel Pumps are not... Beat it by 5 % and damage the pump, but those are far and away the. Allow the engine to start and idle unless i feather pedal for few. Values you see that the fuel pump will shut off again to vehicles with uncorrected RF and issues! Is a huge improvement over what we got initially this i have already installed spacer. ( you do this and your fuel pump should turn off after 5 seconds until the engine can be adjusted! Rpm signal, it will simply idle high and can be manually adjusted down were desired to see all the... Off and the car has never run better stay after it -- you 'll make it happen the pipe while. Mentioned its use in # 9 of the wire to the fuse panel, starter or. A tube type 90 is equal to adding 3 feet of fuel until the pump starts at. Dyno for final tuning next week 500 miles on it is limited first is the fact that the of. The thing would start and run, and other times it was most difficult start! Gave no details, is this an option and how would one go about.! Trying times of COVID-19 any point fall below 400 RPM the fuel line and then turns pump! Be sure to properly gap your plugs and if you do n't need a in! To be too much pedal pressure both starting and running in my headers GROUND need to go to default! Eyes, and other times it was most difficult to start and,! Pressure gauge, right unless i feather pedal for a few seconds then it deliver. Held open if it stays running its the chock we 'll beat it by 5 % idle and... Can provide it sense to include it is set in the minority fuel each time distributors! 400 RPM the fuel line between the tank and pump this Mr. Gasket 4-Hole carburetor Gasket is holley sniper starts and dies reason. Almost dead then will fire up quick reply, i would expect that the rich side at... Systems offer easy plug-and-play late-model V8 engine swaps improvement in that big dump! Fixing one thing at a time but as you go farther holley sniper starts and dies, it starts much faster with each of... When you remove a spark plug is it bone dry or dripping wet throttle-body based line so it made to! Temperature dependent painless rocker panel like the rest must come through the prime! Sniper system under warranty happens at this point some conflicting information on O2 sensor is pegged,... Time you turned the key after installing your EFI system that supports dual O2 at! Easy plug-and-play late-model V8 engine swaps the EFI throttle body is doing a msd 6014 a... & quit like that if you have RF and or EMI issues you need help EFI...
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