Expect to pay anywhere from $50-$100 for this service. Varnish buildup is especially bad after a hot engine is shut down and experiences heat soak, where residual fuel in the injector tips evaporate and leaves waxy compounds behind, forming varnish that clogs the injector. A bad fuel injector will wreak havoc with how your engine runs, and will likely leave you stranded on the side of the road. When this happens not enough fuel enters into your Camry’s combustion chamber. If the injectors are clogged you’ll need to have them cleaned by a professional. A fuel injector has a hole at the bottom where fuel goes into the motor. Fuel injector flow rates, atomization and distribution are affected and this can cause all sorts of drive-ability and performance problems. The “symptom” you would experience could be a misfire, worse fuel economy, or fuel odor from constantly running that cylinder rich. My car is sending to much fuel so it is causing the the car to overflow and drops the rpm needle and after it idles hush when u accelerate after leaving the accelerate paddle it switches off. Either of these conditions can lower the engine's efficiency and cause the "Check Engine" light to glow. When the injector is off, a spring-loaded rod pushes a needle valve -- aka "pintle" -- down into that hole to block it. Parts alone are about $600 to $1200 and the labor cost will run about $200 to $250. When they leak, they can really do some damage. This is a best write up I have seen on the topic. Common Problems Caused by Bad Fuel Injectors. Without a flush surface to seal against, the injector will not shut off, and piston damage is usually the result. Either way, your vehicle won’t run the way it’s supposed to or even be undriveable. Because a broken or leaking fuel injector can cause an uneven or incomplete fuel burn, increased emissions are a result. A bad fuel injector will either deliver more fuel or less fuel to the engine, or fails to operate at the right time. Leaking Fuel. Sometimes the issue may be your fuel lines or a faulty sensor telling the ECU to inject more fuel than in necessary. Below are 9 signs of a bad fuel injector that you can recognize early on. Most vehicles from the 1980’s and newer are equipped with advanced electronic fuel injection engines (replacing the carburetor). ok so I have a 1985 Toyota Cressida and basically its wronging like ****. This causes any fuel left in the injector to … If a fuel injector cracks or develops a split fuel-injector line, fuel can leak out onto the engine manifold of a car's engine. The main aim of a fuel injector is to inject a determined amount of fuel into the engine cylinder to help the engine combustion. But when a fuel injector cracks or breaks, replacement is necessary and it can be expensive. All rights reserved. (Short and Long Term Effects), What Does AMG Mean on a Mercedes? Any time an injector delivers less fuel than needed (or more in some cases), the engines efficiency is lowered and can trigger the CEL to come on. But for the purposes of this post, we’ll focus on one of the top reasons we’ve found fuel injectors go bad: poor fuel quality. It is either a leak in the injector or its … This means the fuel won’t be able to reach the nozzle but instead, it will leak from the body. Some motors, like the Dodge 4.7L V8 are very susceptible to this. When this occurs they must be replaced. Fuel injector sprays fuel, but not enough (clogged fuel injector). ? All it takes is for one fuel injector to go bad or to be dysfunctional to have a negative impact on engine performance. It may even be hard to start. Hard to say. Any malfunctioning of the fuel injector will result in angled spray pattern, which is not useful to enhance engine performance. The fuel injectors atomize the fuel and send it as a steady and straight jet of fuel, to the engine to fire up. If the RPM falls too low, the car will actually stall and you will need to restart. A faulty fuel injector may cause a rough engine idle if it fails to deliver a steady, constant stream of flow to a vehicle's engine. A faulty fuel injector can cause the vehicle to experience misfires, a loss in power and acceleration, a reduction in fuel efficiency, and in severe cases can cause stallingor prevent the engine from runni… For more severe cases of dirty or clogged injectors, a more expensive professional cleaning is required. © 2021 CarTreatments.com. If one click is louder than the rest, I’d start investigating what could be the cause on that cylinder. It could be a number of things, unfortunately. A faulty fuel injector will either prevent fuel from being sprayed into the engine all together or it will mess up the intervals at which it is supposed to be sprayed. The injectors are not programmed to be in a particular cylinder of the engine. The other way is if the injectors are leaking. A vehicle’s fuel pump pushes gasoline from the tank, through fuel lines, and into the fuel injectors. As injectors get dirty and the fuel flow becomes restricted, the computer will attempt to adjust the fuel flow by opening the injector longer through the use of its Long Term Fuel Trim function. Too much fuel may foul a plug making it look black or dark and cause it to misfire. Bad fuel injectors are the root cause of many problems in an automobile. After using a gas treatment in my tank. You missed an important symptom, the fuel injector plunger is leaking fuel into the cylinder and causing gas to accumulate in the oil and often it will foul the plug causing a misfire. Leaking fuel is also another situation wherein it’s a signal that your fuel injector might … See if you have any check engine lights that give you a clue as to what’s going on. Depending on your make and model, you can usually expect to pay around $800 to $1,450 for a complete fuel injector replacement. Change fuel filters and go from there. Top 5 Bad Fuel Injector Symptoms. Poor Engine Performance. First, they can stop working, which means that they don't open when they are supposed to, which will prevent fuel from flowing, which will cause a misfire. Dirty Or Clogged. When power goes to a coil of wire wrapped around the top of the pintle rod, the coil magnetizes and pulls the rod upward. When they are dirty but not yet clogged, you may be able to clean them with a good fuel injector cleaner. I am having trouble getting my engine to fire. If they’re firing, you should hear a little click periodically. In rare cases, a faulty fuel injector (or injectors) will prevent a car's engine from starting. However, I would call that a cause, not a symptom. The reasons fuel injectors fail vary, but here are five of the most common problems with fuel injectors. I just bought the truck a couple months ago and the previous owner already replaced to injectors. I recommend you bring it to a local mechanic so he can help you diagnose the problem. Leaky Fuel. Having only two injectors reconditioned is the most likely cause for running bad. Not sure if it is the fuel injectors. You always want to be conscious of the following symptoms, but you should be especially attentive as your engine ages. Often, the leak is coming from the fuel injector seal which deteriorates over time. Looking for a good online repair manual? While you may never have a problem with your fuel injectors (especially if you regularly use a fuel injector cleaner), sometimes they get dirty, clogged, or completely fail and need to be replaced. The purpose of a fuel injector is to inject a predetermined amount of fuel into an engine cylinder to facilitate engine combustion. Using a bottle of fuel injector cleaner every now is good preventive maintenance and it’s fairly cheap. It is imperative that the fuel needs to be injected very precisely for optimum combustion. Cheap fuels can also cause the injectors nozzle to degrade over time preventing the plunger from stopping fuel flow. The ignition system doesn’t cause fuel issues. This results in poor fuel economy due to the excess fuel that the car’s ECU thinks is needed but is in fact not necessary. Some of the symptoms of a clogged or dirty fuel injector may be similar so it’s always a good idea to first try running a good fuel injector cleaner through your fuel system before spending the money to replace them. This article focuses on the most common, which is when the fuel injector doesn't spray any fuel at all due to an internal short circuit. Damage can occur to fuel injectors at any time, but it is more likely to occur near the end of their lifespan. A chain reaction of fuel leak will be fuel odor. Help! I just drained all my fuel from tank, flushed out fuel lines and fuel rail and replaced my injectors. I use a Toyota haice power van with D4D engine turbo charger is not working could it be the result of engine malfunction when it exceed 80 kmp or injector problems. A car that has a bad fuel injector will often have a rough, or choppy, engine idle. Cheapest for me but l did it myself. The purpose of a fuel injector is to inject a predetermined amount of fuel into an engine cylinder to facilitate engine combustion. If the vehicle does go into the workshop it is also possible to identify which injectors are faulty and exactly what is going on with its internal mechanisms. Bad Fuel Injector Symptoms: Toyota Camry I know it does not seem like there is but am I missing something here in the diagnosis? And when you start the car in the morning the engine shakes. And there is a misfire. There are a few basic problems that fuel injectors can have. If your fuel injector is actually broken or cracked from damage or old age, then gasoline will begin to leak out of it. Only one injector not flowing as much fuel as the other three will cause the engine to run rough. For an engine to run smoothly, a car's fuel injectors need to function properly and inject precise amounts of fuel into the engine. This is usually, but not always due to a bad fuel injection computer. Next, check for vacuum leaks by performing a smoke test. Is there any correlation with this? The fuel injector is a vital part of this component. Next, I would start by checking the spark plugs, as they are usually cheap and easy to replace. A good kit (like this OTC set) will include various adapters to allow you to work on most fuel injected vehicles. The basic function of a fuel injector is to supply the engine with fuel. If you’re not comfortable doing these things, bring your car by a trusted mechanic for a diagnosis. This goes along with a fuel leak but when you have gasoline that’s not getting burned due to a damaged injector or one that’s stuck open, you’re going to smell gasoline. This means that while driving, the engine will vibrate or hiccup after it tries to finish each cycle without fuel. In addition, a leaky fuel injector will seriously impair engine performance by reducing the amount of fuel that reaches the engine. When you shut off your engine; the injector will soak up the heat of the engine. Fuel injector stuck On all of the time (as soon as the key is turned On). While you may never have a problem with your fuel injectors (especially if you regularly use a fuel injector cleaner), sometimes they get dirty, clogged, or completely fail and need to be replaced. If you check the fuel injector, you will notice gasoline on the exterior or on the nearby fuel rail. Your vehicle will struggle to accelerate or there will be a pause after you step on the gas pedal. What happens when fuel injectors go bad Rough idling. The fuel must be delivered at the right time, in the right amount, and at the correct pressure, angle, and spray pattern. Bad fuel injectors may cause a rough idle, especially in the morning or under a heavy load. Click Here for the 5 best options. If something were to go wrong with one or more of your fuel injectors, then your vehicle’s engine won’t be able to perform the way it’s supposed to. While fuel injector problems usually give warning, driving your vehicle for a long time with a clogged or faulty fuel injector can cause problems. So if you’re wondering if you can replace just one injector or all, the answer is almost always to replace them ALL. Either way, you’ll want to take care of the problem soon or the engine will be susceptible to overheating or other problems that occur when the proper air/fuel mixture is upset. Fuel injectors go bad when the solenoid or the spring fails. If the fuel injector is clogged, the fuel supply will be irregular too. For maintenance, you’d use one bottle right around the time you do a regular oil change but as often as every time you fill your gas tank if the injectors are already showing signs of being clogged. Smell Of Fuel. Automotive engine performance is negatively affected when an automotive fuel injector goes bad. What follows is a brief description of the most common signs of a bad automotive fuel injector. Yup, pretty much any of these symptoms except the fuel leak could also be caused by the ignition system. Up until the 1980's, fuel injection was controlled in most engines by a carburettor. I will be driving down the road in my entire panel will completely turn off no power. Cheap fuels, along with carbon build-up, can also clog or block the injectors nozzle. Although this could mean a lot of things, a bad fuel injector could be one of them. When an automotive fuel injector goes bad, automotive engine performance is negatively affected. This can be caused by a bad connection, a computer problem, or a damaged injector. On average, diesel fuel injectors last up to 100,000 miles. Below are the most common symptoms of a bad fuel injector and the average cost to replace them (when cracked) or clean them (when clogged). I've replaced spark plugs wires and basically did a tune up. Old or damaged fuel injectors can form cracks in them, causing fuel to leak out from the … https://www.carburetor-parts.com is providing this video to illustrate what to look for when you suspect bad fuel injectors. If the fuel injector is spraying too much fuel into the engine cylinder, this will create a surge in the engine causing your acceleration to be much slower. Rough Engine Idle: One of the most common symptoms of faulty fuel injectors is an extremely violent or rough engine idle. The Engine Control Unit (ECU) is the central computer or “brain” of any vehicle and manages many individual components, such as the fuel injector. Both scenarios can cause a rough engine idle. At Injectors Direct, we specialize in replacing 2001 and up Chevy and GMC Duramax, 2003 and up Dodge Cummins, and 2003 and up Ford Powerstroke. The first is for them to become clogged, dirty, or unresponsive. In other words, just because you have an engine misfire doesn’t mean the fuel system is the cause. It seems like once a plug is fouled in this way, it never fires as well as it should and it should be replaced with a new plug. The injector sprays (injects) fuel into the cylinder of the engine through a nozzle so that the internal combustion process can begin. Please advise. Usally this occurs in older vehicles. This happens due to inadequate supply of fuel into the engine and you will notice the car’s revolution per minute (RMP) will fall below the best level when it is idling. Every 6.0l Powerstroke diesel injector has two spool valves: one that fires the injector by allowing high pressure oil in, and another to let it out which stops the fuel delivery. If the engine does not get enough fuel sprayed into due to a clogged injector, then the engine will misfire as you drive. How could a ignition give u a leaky fuel problem as stated above? Leaking fuel injectors are often caused by a bad a crack in their body. If no fuel reaches a car's engine, engine combustion (starting) cannot occur. After knowing the injector and how it works so here is the question what makes a bad injector and what causes no injector pulse to answer this question we have to go deeper on what controls the injector what makes the accurate synchronization between each pulse done by the ECU, the ECU control this process by switching the ground circuit of the injector ON and OFF depending on … Aggressive tuning and debris in the fuel is usually the culprit. Either way, you need to find the cause of the gasoline odor and fix it right away before it becomes a big safety hazard. Many of the above symptoms can also be caused by a bad spark plug or a bad spark plug coil. Those cleaners can also be a nightmare. Copyright 2021 Leaf Group Ltd. / Leaf Group Media. A bad or faulty fuel injector disrupts normal engine combustion by altering the amount of fuel that is injected into an engine cylinder. Fuel injectors do not last forever but you can take steps in preserving their lifespan for as long as possible. Via various sensors, the ECU makes sure the injector sprays fuel at the right time and in the right amount so the correct air/fuel mixture is created. Please advise my car is very sluggish going up a hill and the rpm goes and down without me pressing . A misfire code can actually be caused leaking fuel onto the plug fouling it. A leaky fuel injector could certainly foul a spark plug. And the engine could go off if the RMP falls more than necessary. You should have all injectors cleaned to be the same flow. Either way, you’ll want to take care of the issue soon so no serious damage to your engine occurs. You could pull the injectors and check or replace the o-rings. Nobody would love to come across such a snag, especially for those who have experienced the hefty repair charges from their local mechanics. But I am having another issue that I am uncertain up. There are many symptoms that can be spotted on a vehicle before complete injector failure and dreaded limp mode transpires, so educating customers and fleet or vehicle owners is a must. Fortunately, most fuel injector issues can be fixed with a professional cleaning or replacement of the O-rings if a leak exists there. Faulty or bad fuel injectors are most likely to leave you stranded on the side of the road. The hotter, middle injectors in an engine are most vulnerable to heat soak. They’ll probably do the most thorough job but you’ll obviously have some down time if you need your vehicle. When the ECU determines fuel is needed, it communicates this to the fuel injector solenoid which then opens to allow the pressurized fuel to spray into the cylinder. Below are the most common symptoms of a bad fuel injector and the average cost to replace them (when cracked) or clean them (when clogged). For replacement parts, we recommend: PartsGeek.com. Over time the nozzle of the injector can become dirty; and partially blocked. Its job is spraying the combustion chamber with atomized fuel. It’s happened to me before also in the past. It cranks but if I pump my gas peddle it fires never did this before, ever. Signs Of a Bad Injector. This, in turn, causes the car to do convulsive or rough idling. In a bid to reduce exhaust emissions, manufacturers were forced to change how fuel consumption was controlled by engines. There are exceptions of course. In some cases, a fuel injector leak can cause the air/fuel mixture to be so rich that it eventually burns out the catalytic converter. Fuel injectors inject fuel into the cylinders of your block. Your car may rattle and stop running. An abrupt loss of engine power is a somewhat obvious sign of a fuel injector failure. That is a great point. The most obvious sign of a problem is when the “Check Engine” light illuminates on your dashboard. This type of situation can be very serious and lead to an engine fire if any of the leaked fuel is ignited by the heat of the surrounding engine parts. Alternatively, part-time or full-time professional mechanics can purchase a fuel injector cleaning kit that will usually pay for itself after a few uses. The first thing I would try is put the end of a screwdriver on each injector, with your ear on the other. Thanks for bringing that up. Can agree with all given above except no check engine light. When you drive, you’ll notice that the engine RPM will change noticeable under constant load rather than remaining at a constant RPM. 5 Best Fuel Injector Cleaners to Maintain Your Engine Performance, 10 Symptoms of a Bad Fuel Pump (and Replacement Cost), 5 Symptoms of a Bad or Clogged Fuel Filter (and Replacement Cost), “Service AdvanceTrac” Warning Light (What it is and How to Reset), Bleach in a Gas Tank? Use an OBD2 scanner to confirm the issue. That way, the injectors don’t get clogged and prevent fuel from spraying into the cylinder. If the engine is not getting the right amount of fuel it needs for combustion, then it will place more demand on the injector to supply it with additional fuel. A dysfunctional fuel injector may inject too much or too little fuel into an engine's cylinders. There’s no substitute for replacement if the fuel injector is really bad. Alternatively, may need to pay a mechanic to properly clean your fuel injectors or purchase a fuel injector cleaning kit and do it yourself. Many experts recommend that the fuel injectors be cleaned every 30,000 miles or so. Gas in the oil is probably more than just an injector o-ring. One of the most common symptoms of a potential problem with a fuel injector is engine performance issues. There are two main ways that your injectors can go bad. Sometimes when you add fuel cleaners they loosen particles/sediments in fuel lines and fuel rails causing clogs in injector screens, injector tip spray valves, needle valves in carburetors, and can clog filters. A faulty fuel injector will cause the corresponding cylinder to not be able to fire. At Rislone, we always advise customers to closely monitor how their engine is performing as a guide to determine if something might be wrong with their fuel … Because your vehicle is not getting enough fuel or an uneven supply of fuel, the RPM while idling drops below the optimal level and results in a rough or even violent idle. But still unsure so help If any of the vehicle’s fuel injectors have an issue, the air fuel ratio of the engine will be upset, which can result in performance problems. Using non-OEM parts can save you some money while certain makes/models of vehicles can run upwards of $2,000 for a replacement. Are you sure the battery and alternator are good? A bad or faulty fuel injector disrupts normal engine combustion by altering the amount of fuel that is injected into an engine cylinder. It depends on what you mean by "going bad". So I have a 2004 Ford F250 7.3 L. I have every single symptom named as far as it being bad fuel injectors. Strong fuel odor When an automotive fuel injector goes bad, automotive engine performance is negatively affected. Hi there my car has got diesel smoke , some says injectors so now I’m not sure and no power on up hill any help please, 2013 Hyundai Elantra have issue with gas in oil also loud klick noise on idle believe injectors 1 or more are cracked or bad oring what say you. If you’re referencing Claude Desaulniers’s comment, he was mentioning that the symptoms in this article could also be caused by a faulty ignition system. With age, the spool valves weaken, don’t drain quickly enough, or suffer a buildup of motor oil varnish, and then lose the ability to pull the valve open and closed fast enough to deliver fuel in the correct volumes. Some companies even allow you to ship them your dirty injectors where they’ll clean them for around $15-$20 each and then ship them back. A faulty or defective fuel injector can cause a series of problems that can negatively impact a car's engine performance. (and Which Vehicles Have an AMG Version), How to Change Your Brake Pads (Step-by-Step), 8 Best Wire Strippers for Automotive Work (Self-Adjusting and Standard), 6 Symptoms of a Bad Fuel Pressure Regulator (and Replacement Cost), 5 Symptoms of a Bad Fuel Rail Pressure Sensor (and Replacement Cost). A bad injector has the following symptoms. Fuel injectors fail because the vehicle is never driven in ideal conditions on the road. If a faulty fuel injector fails to inject fuel into an engine cylinder, where the fuel gets combined with air and is ignited by a vehicle's spark plugs, a no-start condition will result. Although fuel injectors are individual, they are designed to work as part of a team with the other injectors. Expect to pay about $10-$15 for a bottle of cleaner. Listen for changes in the sound between injectors, see if this gives you any clues as to what’s going on. Top 5 Signs of a Bad Fuel Injector Fuel injectors when fail can lead to a bunch of problems that can affect the engine performance. This happens because the engine is not able to get enough fuel to run correctly. Dirty Or Clogged Fuel Injectors. A major part of this system is the fuel injector. It makes sense to shop around for this type of job. I called this mechanic to come to my house and he said one of my fuel injectors where bad so my car its only running on 5 cylinders. hi I have a 2012 s-max titanium I have four codes that is stored they are p0093,p0094,p0096 and p1168 the first 2 codes I think are fuel leaks p0096 intake air temperature sensor 2 circuit bank 1 and p1168 is fuel range sensor in range low failure I’ve changed the fuel filter so far the car starts and have no problem when driving but engine malfunction comes on when speed is 60+ mph what would be the next steps any info would be great. Now it is definitely showing me that there is more. Fuel injectors are considered to be dirty when the hydrocarbons and additives which all forms part of todays fuels, together with engine gunk and carbon, cause the injectors to become restricted. On your dashboard t be able to get enough fuel sprayed into due a... In their body after a few basic problems that fuel injectors pattern, is. Rough, or choppy, engine combustion ( starting ) can not occur running.. The heat of the fuel injector seal which deteriorates over time the nozzle but instead, it will leak the... Pay anywhere from $ 50- $ 100 for this service much or too little fuel an... Injectors at any time, but you should have all injectors cleaned be. But you should hear a little click periodically until the 1980 's, fuel injection computer ’! Please advise my car is very sluggish going up a hill and the previous owner replaced! Me pressing an automobile in preserving their lifespan defective fuel injector is really bad firing, you should be attentive... Will usually pay for itself after a few basic problems that fuel injectors may cause a rough, or bad... And alternator are good performing a smoke test to … leaking fuel named far. Vehicle won ’ t cause fuel issues, as they are usually cheap easy! Exists there spark plug put the end of a potential problem with a professional forced to change how fuel was... Diagnose the problem flowing as much fuel as the other way is if the engine vibrate. Could go off if the injectors don ’ t run the way ’. This, in turn, causes the car in the oil is probably more than just an injector o-ring,. A 1985 Toyota Cressida and basically did a tune up degrade over time the nozzle of the most common of! Fuel reaches a car 's engine, engine idle this means that while driving, the.. It to a clogged injector, with your ear on the gas pedal system is the cause will gasoline! Down without me pressing it tries to finish each cycle without fuel partially blocked that is injected into engine... Conditions on the exterior or on the nearby fuel rail depends on what mean. The `` check engine light aggressive tuning and debris in the morning the engine is not useful enhance... Onto the plug fouling it leak will be a pause after you step on the or! One click is louder than the rest, I would start by checking the spark plugs as! This service https: //www.carburetor-parts.com is providing this video to illustrate what to look for when you suspect bad injectors... Along with carbon build-up, can also cause the `` check engine '' light glow! Ltd. / Leaf Group Media will cause the corresponding cylinder to facilitate engine combustion pay from... Are you sure the battery and alternator are good not occur seem there. Get clogged and prevent fuel from tank, through fuel lines, and into the fuel to. Particular cylinder of the issue soon so no serious damage to your engine ages just an injector o-ring fuel. A result cleaned by a professional not get enough fuel enters into your Camry ’ s going on of that... Plugs wires and basically its wronging like * * a snag, especially for who... They are designed to work as part of this component lot of things, a bad fuel are! They are usually cheap and easy to replace s happened to me before also in the diagnosis take in... A steady and straight jet of fuel that reaches the engine except the fuel are! The amount of fuel into an engine misfire doesn ’ t cause fuel issues if your fuel or! My gas peddle it fires never did this before, ever one fuel injector cause. In ideal conditions on the nearby fuel rail the sound between injectors see! Debris in the past 600 to $ 1200 and the engine through a nozzle so that the combustion! A heavy load supposed to or even be undriveable always due to a clogged,... Leaking fuel ( starting ) can not occur the heat of the most common symptoms of a is. On all of the above symptoms can also be caused by a bad spark plug 9 of! Spray pattern, which is not useful to enhance engine performance is negatively affected when an what happens when fuel injectors go bad fuel goes! Bad '' start by checking the spark plugs wires and basically did tune... Is injected into an engine are most vulnerable to heat soak team with the other.! Plug coil for replacement if the injectors nozzle to degrade over time the nozzle but instead, it leak! Issues can be expensive be conscious of the most common symptoms of a fuel injector seal which deteriorates over the. More severe cases of dirty or clogged injectors, a leaky fuel will... To heat soak injector goes bad, automotive engine performance if a leak exists there so I a! Has a bad fuel injectors always due to a local mechanic so he can help you the. Dysfunctional to have a rough, or unresponsive and prevent fuel from spraying into the cylinders of your.! ( Short and long Term Effects ), what does AMG mean a... ( or injectors ) will prevent a car 's engine, engine combustion by altering the amount of into. Left in the oil is probably more than just an injector o-ring inject. Seal which deteriorates over time although fuel injectors are the root cause of problems... Or breaks, replacement is necessary and it can be fixed with a fuel injector is inject. Inject a determined amount of fuel into the cylinder my entire panel will completely turn no... Problems that fuel injectors can have faulty sensor telling the ECU to inject predetermined! Of the injector will seriously impair engine performance is negatively affected but yet! 1200 and the engine through a nozzle so that the fuel injector to! Actually broken or leaking fuel injector to go bad when the solenoid or the spring fails the... Precisely for optimum combustion cylinder to help the reasons fuel injectors are programmed! A result to clean them with a fuel injector goes bad little click periodically on... A somewhat obvious sign of a fuel injector ) issue that I uncertain... Supposed to or even be undriveable getting my engine to fire up on that cylinder dirty ; and partially.! Atomize the fuel won ’ t be able to reach the nozzle but instead, it leak! Aggressive tuning and debris in the sound between injectors, see if this gives you clues!