Clogged Fuel Injectors

On that one cylinder, there is no change between having it connectd or not, this would suggest that the injector is either. The only way to fix this problem is to clean your fuel injectors. The # 1 is clogged, you can see how the consistent and cleaner the other 3 are. Here is why. Adds lubricity to diesel fuel and diesel fuel system components; Cleans fuel injectors and chamber areas, dissolves fuel gum and varnish throughout diesel fuel systems; Stabilizes diesel fuels; Restores diesel injector spray patterns by removing soot and carbon from injector nozzles, ultimately recovering lost fuel volume and reclaiming engine. But, if you want to keep your vehicle purring like a kitten, fuel injector maintenance is a must. Faulty fuel injectors are also known to cause white smoke. Clogged Fuel Filters. Clogged or dirty injectors can be catastrophic for engines utilising forced induction (turbo or supercharged) as a situation where demand for fuel can exceed supply - causing cylinders to run lean and destroy the engine though the creation of excess heat. Newer, lower mileage cars warrant less frequent injector cleaning than older, higher mileage ones. The fuel injector resistance is good and is being activated by the fuel injection computer I think the fuel injector is clogged, I then swap out that fuel injector with its neighbor. Further guidance. Recommended Product for Cleaning Fuel Injectors. Matteson Auto Mall near Chicago, IL 60636 offers fuel injector cleaning for your Kia Seltos. A common symptom of a clogged fuel filter is difficulty starting the engine. The fuel injectors are held into the fuel rail by retaining clips near the top of the injector body. 8L Vehicles - Year 1992-2004: Fuel Injectors - Amazon. Dirty Fuel Injectors - Residual fuel additive that is not dispensed within the manifold can leave a film on the fuel injectors. Newer, lower mileage cars warrant less frequent injector cleaning than older, higher mileage ones. For what it's worth: I've been using STP Concentrated fuel injector cleaner for the last 10 years at every oil change (3K miles) on new Ford cars and trucks and have not had any clogged injectors nor any fuel system problems. The fuel injectors will come out with the fuel rail. Poor fuel economy can be exacerbated by a loose gas cap, clogged fuel filters and fuel lines, or clogged injectors. It will break down and it will clog up filters and injectors in a hurry. Each one has a specially-designed nozzle which projects a tuned spray. Simple! Ah the good old days. Fuel injector cleaner is a cheap product to purchase with many benefits when using on a regular basis. or clogged injectors; on the MPI motor that misfires (the ECU sees 02 lean and adds more fuel, causing good cylinders, to now flood). Moreover, it's best practice to inspect your fuel injectors as early as possible. Fuel pumps mounted to the engine use the motion of the engine to pump the fuel, most often being driven by the camshaft, but sometimes the crankshaft. 50 per year, or 21 gallons of gas. The business end of fuel injectors can't be seen while the engine is running. If any of these conditions are present you most likely will have a converter with a Broken Substrate or one unable to keep up performance. The first of the three basic types of Powerstroke Diesel Injector failure is normal mechanical wear and tear. If you suspect that an injector is clogged or malfunctioning, an injector balance test can isolate the bad injector. My mechanic said tht it looks like dirty fuel injectors and I should have a fuel injector cleaning service (cleaning injectors while still on car. The car has 242,000 miles on it and has performed well over the years. Clogged Fuel Injector Symptoms It may not be that easy to diagnose a clogged fuel injector as they are similar to bad coil, bad spark plug, or broken spark plug. Poor fuel economy can be exacerbated by a loose gas cap, clogged fuel filters and fuel lines, or clogged injectors. Engine operation on fuels and additives that do not meet the. Similar symptoms can be caused by a weak fuel pump. Fuel injectors spray a fine mist of fuel, and if they become clogged, the spray can be diminished. As a professional mechanic I can tell you cleaning fuel injectors are often an exercise in futility. You need to scan the fuel trims to determine if it is running lean. What are the typical signs of a failing spider assembly?. GM used a bottom feed design on these cars with a plastic top where the terminals are located. 1 - The role of the Oxygen sensor The o2 sensor (oxygen sensor) is located within the exhaust system, upstream of the catalytic converter. To avoid further engine problems such as stalling, get to a mechanic right away to check if your injectors are leaking or clogged. New OEM, Aftermarket, Refinished, Rebuilt or Used – we have the most options for Z Car Parts on the web. Dealer could replace all the fuel injectors and said this is reported in few cars of this model. Newer, lower mileage cars warrant less frequent injector cleaning than older, higher mileage ones. The BG44K is effective at cleaning and restoring performance of your pistons in particular, which is not something every fuel system cleaner can do. Schedule an appointment for fuel injector cleaning, installation or replacement at World Car Kia South. Clogged injectors will also introduce an unknown quantity when calculating safe over-boost levels for forced induction applications. Only when the computer activates them by completing their electrical circuit do they open and let fuel spray. The following videos demonstrate the equipment and the process: - Scotty Kilmer "How to clean fuel injectors in your car " - A mechanic demonstrates "Fuel Injection Cleaning" - OTC Guy "Pro Master Fuel Injection Service Kit" (and a others from NAPA. • Quickly cleans fuel injectors, valves and combustion chambers • All kinds of engine issues like power loss, stumbling, residue collection, stalling etc. There is nothing special about a ECU branded "88 Shiro" or otherwise, it's a marketing ploy to make it SEEM more desirable. Your problem is likely bad injectors. Meaning, that sooner or later the fuel injectors on your fuel injected engine will get dirty and will get clogged to some extent. The key to finding the cause of the problem (whether it's a bad or clogged injector or not), is to eliminate the components that are involved in providing spark, air, and fuel to the 'dead' cylinder or cylinders. How to clean fuel injectors. The fuel injectors are now placed in an ultrasonic cleaning bath where they are pulsed open and closed for 30 - 40 minutes. Your injectors will still need to be properly cleaned eventually. Fuel pump is working fine, fuel filter etc. Thank you for the responses and advice, I will try this today. Ethyl alcohol, also known as ethanol, is a grain alcohol that is added to gasoline to burn in engines without the need for modifications. It could be that your engine's fuel injectors are dirty, clogged with stale fuel that has dried and turned to varnish. Most fuels have additives chemicals or components that help keep the fuel system clean. Technicians can run professional cleaning products through your fuel lines to clear out residue that commonly leads to clogged nozzles. Below are some of the key symptoms of dirty or clogged fuel injectors and can be fixed using ProFlow's advanced Ultrasonic Fuel Injector Cleaning Services. Eventually the injectors can fail and/or not provide enough fuel to ensure the engine gets enough, and the engine can be damaged internally. The o2 sensor helps to ensure that the amount of fuel inj. That took care of the fuel system minus the all-important fuel injectors. When you are not on the top of the maintenance, it can get clogged of the dirt and fail completely. There are common fuel injector problems that stem from dirty clogged injectors as well as a leaking injector. Sounds like clogged fuel injector(s) based upon my experience I replaced mine and my truck runs like a new F150. Sometimes you can repair clogging fuel injectors just by adding the proper chemical; i. 3 of 4 11/15/00 9:57 AM. While ultrasonic cleaning of the injectors may resolve the issue in some cases, the better option is to replace the affected injectors. Conclusion. Meaning, that sooner or later the fuel injectors on your fuel injection engine will get dirty and will get clogged to some extent. I just look at it from the stand point that a smart engineer put a specification out for a minimum pressure of fuel be delivered to the injectors (for a specified amount of fuel flow for a given volume) and the injector builders know that by running too low of a fuel pressure ends up resulting in not enough fuel flow to the injectors and there. Clogged Fuel Filters. First we tried running a few fuel treatments through the system to clear out the semi-clogged injectors but to no avail. Clogged injectors can cause the following problems: Excessive carbon deposits and build up on the. The products are made with concentrated detergents to break up minerals that form and clog the tiny nozzles on fuel injectors. There are bad, faulty, clogged and leaking fuel injectors, which generally cause a decrease in performance, and a leaking fuel injector, which can cause fuel odors within the vehicle as well as poor performance. I would rather have a carb anyway over injection on a bike. Problem #3 – Foreign Object Inside Injector. They must be completely clogged. In the following pasts, we will guide you on how to test fuel injectors at home, including TBI injectors and EFI injectors. Since they deal in such small amounts, even the tiniest particulate or impurity in the gas can cause a degradation in the fuel injector's flow rate or spray pattern resulting in clogged fuel injectors. Though small in size, Kubota Super. Yamaha F115 Fuel Injector 68V-8A360-00-00. Choose the fuel injectors recommended for your gasoline or diesel application. DIY Mercedesworks. Check the condition of the injector o-ring seals and injector caps. However, when your car fuel injector is clogged, below are some of the symptoms you would most likely experience. Standard procedure is to disable the fuel pump, disconnect the fuel lines and put a pressurized cleaner/fuel mixture to the fuel rail and run the engine on that mix to clean the injectors. The only way to solve this issue is removing the fuel injector and having it cleaned by a professional. Nearly all modern-day cars and trucks use a fuel injection system to supply fuel to the engine's cylinders. Question is, does anyone have any recommendations for shops around the Portland area that can clean or diagnose the injectors? And does anyone have a single yellow side feed injector for sale?. Scan tools that can disable injectors can isolate an injector for diagnostics. Study the engine layout of your car and go over its manual to find out the location of fuel injectors, fuel pump and its components. You will notice a rough or choppy engine idle when the car is not moving. As it wears, it can cause fuel to leak between the valve and the sealing surface. Clogged fuel injectors are the primary cause of discrepancies in levels of fuel detergent. Clogged fuel injector nozzles. An injector volume test and/or injector balance test might show that. Left behind on the tip of the injector is a gummy residue from the low ends of the fuel. Fuel Injectors The most common problem the 4TEC engine has is the spark plugs. When you are not on the top of the maintenance, it can get clogged of the dirt and fail completely. It enhances combustion by reducing the size of the fuel droplet, eliminating carbon build up and reduces harmful exhaust. The fuel pump's job is pretty self-explanatory: to pump fuel from the gas tank to the engine. More often than not, the fuel filter will become clogged during the mowing season. I ride an '06 Streetbob with a stage 1 upgrade and recently have had a problem with my rear cylinder. What typically inhibits injectors and carburetors from working properly is a build-up of fuel varnish deposits. GM used a bottom feed design on these cars with a plastic top where the terminals are located. In fact, when I cracked the fuel injector feed lines to relieve the residual pressure, there was none, it had all leaked out the injectors. A clogged fuel filter can damage expensive injection pumps and injectors. Had to replace the fuel pump (thanks ebay and folks wrecking ulys) and now am trying to clean the injectors out. It has done150k on the odo regularly serviced from toyota. Poor performance and rough running: A failing fuel injector can cause an engine to misfire. A smell of fuel means that diesel is leaking from somewhere. Since it can take well over an hour to access and evaluate fuel injectors, injector maintenance is done by time and mileage intervals rather than from direct inspection. It’s the automotive equivalent of exercising without having eaten. Injectors or dummy plugs on a van 6. Unclogging your fuel injectors can provide one of the best ways to improve your gas mileage. • Disabling the fuel pump and plugging the fuel return line or installing a U-tube so fuel recirculates back to the tank can be messy and time consuming. The fuel pack needs to be unplugged and the ECM wiring harness connector needs to be directly plugged into the ECM. Left behind on the tip of the injector is a gummy residue from the low ends of the fuel. There are common fuel injector problems that stem from dirty clogged injectors as well as a leaking injector. If you have a vehicle that has fuel injection, you may notice a decrease in performance and fuel mileage as your vehicle ages. We service fuel injectors of EFI cars on international standards using most modern acoustic technology. Same here #1,2 & 3 went bad within a year and I replaced all of them myself. But fuel was not going through the injectors (all six). Note how the clips are installed prior to removing the clips for injector removal. Not only that but in the majority of cases, in which we suspect a fuel injector is causing the misfire, it's really an ignition system component behind it. Injectors do get clogged allot, from reading online. The most common issue is the buildup of carbon deposits. There are two styles of fuel injectors to go along with the stock rails used on the VG30ET. When it is a leaky injector causing these symptoms, then you will likely need to replace the injectors (which is expensive). It is important to occasionally clean your fuel injector with fuel injection cleaner. If winterization isn't performed and fuel isn't stabilized with the proper treatment to prevent evaporation and varnishing, expensive fuel-injector cleaning and calibrating are often the remedy. We eventually had no choice but to purchase a new set of injectors. flagship marine injector cleaning, fuel injectors yamaha outboards cleaning georgia, honda 929 motorcycle smelling gas fumes, honda outboard fuel injector check, honda outboard fuel injectors clodded, honda outboard plugged injectors, how to clear clogged injector on arctic cat, how to fix fuel injector on cbr, how to tell if your cbr fuel. Bad Fuel Injectors Diagnosis: Volkswagen Touareg. A simple way to determine the fuel flow is to remove the fuel hose at the carburetor and hold over a small container. Since the fuel supply is limited and the oxygen supply is inconsistent, the engine needs to dispense just the right amount of fuel to mix with the oxygen in order to be as efficient as possible - this is what the fuel injectors do. RS4 FSI Fuel Injectors (set of 4) - 079906036D (4) - 363 - Engine/Fueling - Assembled by USP - USP Motorsports is a leader in auto parts for Volkswagen, BMW, Audi & Porsche. Fuel pump diaphragms stroke at the speed it takes to keep the carburetor float chambers full. With AutoZone's replacement fuel systems, you can easily and affordably swap out faulty components to get back on the road. are corrected at a super-fast pace. Fuel injector cleaning kits are simple to use and very. Below are some of the key symptoms of dirty or clogged fuel injectors and can be fixed using ProFlow's advanced Ultrasonic Fuel Injector Cleaning Services. When the engine is shut off, the injectors undergo heat soak. 7L diesel engines can damage fuel system components including the High Pressure (HP) fuel injection pump and fuel injectors. I replaced all the injectors 42K miles ago (because of a bad #3 injector) and they had 20K (correction on mileage) on the 520s. The only way to fix this problem is to clean your fuel injectors. There is nothing special about a ECU branded "88 Shiro" or otherwise, it's a marketing ploy to make it SEEM more desirable. Learn … Continued. A common symptom of a clogged fuel filter is difficulty starting the engine. They have to be, otherwise their cars would not be able to run! Prices for fuel injectors are all over the place. When it is a leaky injector causing these symptoms, then you will likely need to replace the injectors (which is expensive). Utilizing Fuel Injector Cleaner. Increase Profits. This leads me to believe the fuel injectors need to be cleaned. World Car Kia South near San Antonio, TX 78224 offers fuel injectors for your Kia Seltos. But when the fuel filter gets clogged, your engine’s performance can be affected. But, if you want to keep your vehicle purring like a kitten, fuel injector maintenance is a must.  But like all automotive parts, it's not uncommon for fuel injectors to fail. I do have an extra set of near new stock size injectors (18 I believe) and 22 or 23 lbs injectors. [E-TEC fuel injectors] are such expensive injectors for Evinrude motors. Because they are a part of the fuel system, any problems with the fuel injectors can cause all sorts of engine performance issues, that can sometimes even render the vehicle undrivable. I have a 1997 chevy 1500 siverado with a 5. Funny part is the car was FULLY serviced 3. Many experts recommend that the fuel injectors be cleaned every 30,000 miles or so. 9L 12V, 24V and HPCR engines from a source you can trust, Geno's Garage. Not saying I know it for a fact, but would check it out. We are a warehouse distributor focused exclusively on providing high quality original equipment manufacturer parts for your fleet of light and medium duty diesel trucks. For example, low temperatures can cause wax crystallization, which can lead to fuel filter plugging. Clogged or dirty fuel injectors can cause a wide variety of engine problems including a sub-par fuel economy, loss of engine performance, care breakdowns or poor emissions. The BG44K is effective at cleaning and restoring performance of your pistons in particular, which is not something every fuel system cleaner can do. Although fuel injectors are an extremely important part of a vehicle, few people give them a second thought. But unless there are noticeable signs of clogged fuel injectors (such as a rough idle, stalling. The fuel injector cleaning is probably a great idea also. Turbo Z31's come with 259cc/min fuel injectors (at 37psi working pressure) from the factory. The # 1 is clogged, you can see how the consistent and cleaner the other 3 are. The fuel will travel neatly into a cylinder. Clogged up fuel injectors are so common that every auto-part shop has dozens of different so-called "Fuel Injector Cleaners" that purportedly can clean your entire fuel system and make your. The job of the filter is to remove any debris before the gasoline enters the engine. 5 Signs of a Fuel Injector gone bad May 26, 2017. Diesel injectors can fail for various reasons, including mechanical soundness of the injector or the quality of the fuel running through it. Hydrotreating the diesel fuel at the refinery takes out the sulfur and some of the complex organic molecules in the fuel that performed this function. Watt's Diesel understands what it does to you when your truck is down. • Disabling the fuel pump and plugging the fuel return line or installing a U-tube so fuel recirculates back to the tank can be messy and time consuming. Some newer cars have such high pressure in the injectors that they don't get clogged and cleaning them does more harm than good. Fuel injectors disperse fuel into the engine at the exact angle and quantity needed for the engine to operate optimally, there are several fuel injector nozzles that must evenly disperse the fuel, and in case a single nozzle is affected by dirt from the carbon deposit the engine performance will be affected. This is the correct test result and it lets you know that the internal coil winding of each fuel injector is OK. The filter is designed to capture particles in your fuel before they pass into the engine, and these pieces of matter can be made up of clumps of fuel sludge, metallic particles, or other unwanted particulate. DIY Mercedesworks. Now I’m thinking that maybe one of the turbo hoses has blown off. Technicians can run professional cleaning products through your fuel lines to clear out residue that commonly leads to clogged nozzles. Impact of clogged fuel injector. They are found in most internal combustion engines. Schedule an appointment for fuel injector cleaning, installation or replacement at Peak Kia Littleton. Cleaning the fuel injectors will keep your engine, and the fuel system that feeds it, happy and healthy for the life of the automobile. You can also use an ohmmeter to test for an open or shorted coil inside the fuel injector. Faulty seat switch. Let’s take a look at how one works, and what can go wrong. Replacement fuel injector. Alternatively, Ford fuel injectors, Nissan fuel injectors, and those made by and for other automobile manufacturers are all quite good. A bit pricy, ($300 for injectors alone), but well worth the expense. Why do fuel injectors need to be serviced? Decreased Performance:. Clogged Fuel Filters. The fuel mileage of the vehicle gets poor and you find it. What they're really saying is that those are the benefits you could see when compared with the way your vehicle is running with clogged injectors. The car has 242,000 miles on it and has performed well over the years. Clogged Fuel Filters. Unclogging the fuel line and replacing the filter is a task that will take approximately 15 minutes. It’s no wonder, then, that rough idling can be the result of a clogged fuel injector. Dirty or clogged fuel injectors can have a serious effect on your car's overall performance and can lead to untimely car break downs and significantly expensive car engine repairs. Diesel injectors can fail for various reasons, including mechanical soundness of the injector or the quality of the fuel running through it. It is a timed fuel pump. Here is why. According to some …. Fuel injectors spray tiny amounts of fuel at a time into the combustion chamber. Restricted flow increases fuel flow velocity. swapping injectors is a good place to start but sounds like your not getting fuel to that cyl from what you have already checked. When fuel injectors become clogged fuel doesn't flow and the injector will not spray fuel in the pattern in which they are designed for. We eventually had no choice but to purchase a new set of injectors. You could replace the injectors if you want since you said you could afford it. Replacing fuel filter is routine maintenance and can save you aggravation, time and money. I have a 1997 chevy 1500 siverado with a 5. This could be due to leaking injector or a stuck open pintle supplying too much fuel. Most poorly performing and clogged gasoline fuel injectors respond well to our "off the car" ultrasonic fuel injector cleaning service, and are restored to a like new condition. My Baja has a bad or clogged injector. What happens when fuel injectors go bad? It definitely affects the engine performance. Fuel injectors become clogged and no longer spray the fine atomized spray that they The Benefit of Flushing Your Fuel Injectors EzineArticles. The fuel mileage of the vehicle gets poor and you find it. The benefits realized by injector cleaning obviously will vary depending on the condition of the injectors prior to cleaning and how badly they were clogged. A clogged fuel filter can damage expensive injection pumps and injectors. I just got my 2002 Toyota Prius out of the shop after 8 days. This is my guess. You can't just change an injector without updating these tables to be correct or you end up with some issues. A fuel-injected engine may backfire if an intake leak is present (causing the engine to run lean), or a fuel injection component such as an air-flow sensor is defective. I don't have a lot of tools here, and I can't drive it to a shop (I can't even back it out of the garage!), so I'm wondering if anyone has any ideas on what could be going on and what I can do to fix it!. Schedule an appointment for fuel injector cleaning, installation or replacement at Waikem Kia. Become a Service Provider to Other Shops. The function of your diesel fuel injection system relies on careful maintenance. Fuel injectors become clogged and no longer spray the fine atomized spray that they The Benefit of Flushing Your Fuel Injectors EzineArticles. Even a small 8 to 10 percent reduction from one of your Ford fuel injectors can cause inconsistent fuel supply. Use a fuel injection cleaning kit to clear clogged fuel injectors. Lucas complete is the best fuel injector cleaner for those of you who are looking to save a few bucks by buying in bulk. with the truck idling, i loosened the fuel lines from each injector until i found one that made that made no difference in the way the engine was running when it was loosened. The first line of defense against clogged fuel injectors is a thorough cleaning session. A small initial equipment investment means even a repair shop in a smaller community can realize hundreds of dollars more per week in profits from this simple and effective maintenance procedure. A simple fuel injector cleaning can cost as little as $10 if you do it yourself, while a full-service fuel injector cleaning can cost $60 to $100 at a local auto service mechanic. Watt's Diesel understands what it does to you when your truck is down. A faulty or clogged fuel injector can cause problems not only with your engine, can also negatively affect your gas mileage and engine performance. By: Jason84NA2T. Turbo Z31's come with 259cc/min fuel injectors (at 37psi working pressure) from the factory. Test TBI Injectors. Now to find out the latter it needs to be run, hence having crap oil in there is going to be awful for the engine. The purpose of a diesel fuel filter is to ensure that fuel is clean before it gets to the injectors. You should hear a clicking sound as the injector's valve opens and closes. Limitations and Considerations: Badly clogged injectors may not pass enough solvent during a normal cleaning cycle to be thoroughly. Conclusion. I'm thinking about the only thing left is partially clogged and/or leaking fuel injectors. A leaky EGR valve can also have the same effect as an air leak. I just got my 2002 Toyota Prius out of the shop after 8 days. Learn … Continued. Although fuel injectors are an extremely important part of a vehicle, few people give them a second thought. It’s an easy and quick repair to make so labor costs are usually low and the part itself is usually fairly inexpensive. Diagnosing or inspecting clogged fuel injectors may not be entirely easy. How To Find The BAD Or Clogged Fuel Injector. When the fuel level fluctuates drastically, the high and low rpm's will cause the. The fuel injector resistance is good and I think the fuel injector is clogged, I then swap out that fuel injector with its neighbor. The fuel injector cleaning is probably a great idea also. Did your oxygen sensor read your fuel mixture as lean?. Here are some of the problems and their causes that you may encounter on your Hyundai Accent fuel injector. The filter is designed to capture particles in your fuel before they pass into the engine, and these pieces of matter can be made up of clumps of fuel sludge, metallic particles, or other unwanted particulate. An injector becomes clogged with fuel varnish deposits and fails to deliver its normal dose of fuel when it's energized, or Fuel pressure to the injector drops below specifications because of a weak fuel pump, plugged fuel filter or leaky fuel pressure regulator. I would rule out a clogged fuel filter because you feel a miss and not an overall starvation. What Causes Injectors to Become Clogged? There are two possible reasons that an injector may become clogged. the cars fuel filter was blocked, my theory is dirty petrol was put in. It's a 93 Toyota camry with 200,000 miles, so I'm thinking about getting a full fuel injector cleanse. Over time, small sediments and particles become wedged in the injectors. - Fuel injector O-ring failure can cause either a fuel leak on the fuel rail or an intake manifold vacuum leak on the intake manifold. You can also use an ohmmeter to test for an open or shorted coil inside the fuel injector. I am not sure if this is a problem with the aftermarket fuelpak or a clogged injector. What Is Fuel Injector Cleaning? We use ultrasonic injector cleaning to restore the full function of your gasoline or natural gas fuel injectors. 5mm clamps are just a little bit too tight to slip over the end of the hose. At top, male and female quick-disconnect fittings (made by CPC). I have a link below to buy fuel injectors. It doesn't take much of a restriction in a fuel injector to lean out the air/fuel mixture. Seems a little steep, I personally would verify this is the problem, before buying a new injector. It comes on and does not turn off (due to electrical issues). 3 of 4 11/15/00 9:57 AM. Buy Fuel Injector Set of 8 - Replaces part 280150943, 0280150939, 0280150909 - Fits Ford E250, F150, F250, F350, E350, Mustang, Lincoln and Mercury 4. Scan tools that can disable injectors can isolate an injector for diagnostics. A leaky EGR valve can also have the same effect as an air leak. Find Bosch Fuel Injectors with EV1/Jetronic/Minitimer Injector Plug Style and get Free Shipping on Orders Over $99 at Summit Racing! Clogged or leaking fuel injectors can have a ripple effect on your vehicle, decrease performance and economy. LTFT Adaption Value negative (-), 0