Here are the most common problems that will throw the code. In essence, the onset of a P0302 diagnostic trouble code indicates that a misfire event has been detected on cylinder #2, as listed numerically. Honda : Brand Honda : Model Genuine Honda PLUG, CYLINDER HEAD : Item Weight 0.176 ounces : Product Dimensions 2 x 2 x 1 inches : Item model number 12513-P72-003 : Is Discontinued By Manufacturer No : Manufacturer Part Number 12513-P72-003 : OEM Part Number 12513-P72-003 Your email address will not be published. The purge valve can become stuck in the open position, resulting in a burned exhaust. Some questions to consider: In general, how does it run? And I appreciate the other input as well! Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Without this guidance, it will take time and money to diagnose and fix the cylinder 2 misfire engine problem. It is done during a cold start to help with the combustion process. Imagine the anxiety and stress it would give you if youre driving on the highway and your engine dies. They immediately said they need to do TSB 13-081. 2023 Honda Civic CIVIC LX DEMO+2000$ DISCOUNT+101$ WEEKLY !!! All Rights Reserved. This engine has had some troubles. -Enjoy!If an SMA Video has helped you out please consider giving using \"Patreon\" to help support us. Catalytic converters are critical in reducing NOx and particulate emissions, but they cant do their job if they flush out unburnt fuel. A misfire occurs when the engine fails to ignite the fuel in one or more cylinders. }. The distributor itself should also be opened and probed with the ignition coil, pick-up coil, and ignition next on the list. Assuming proper fuel delivery to the affected cylinder is maintained, superheating of a catalytic convertors core structure can occur as unburnt fuel is sent downstream through a vehicles exhaust system. Before checking for any of these problems be sure to plug in a code reader to the system. Your engine needs the perfect balance of fuel, spark, and air to run smoothly. Meanwhile, clogged EGR tubes and valves, defective coil pack wires, camshaft sensors, and O2 sensors could all be replaced if compromised." Make sure there is no damage and that the gap spacing is proper. While a lack of sufficient spark is often the root cause of a cylinder misfire, a lack of fuel to the affected cylinder can also be to blame. The FIXD wireless OBD2 scanner and free app for iPhone and Android translates your check engine light into plain English so you can rest easy. The only thing you can do is diagnose it by yourself or DIY, so you might not be late for your important meeting. This is explained in your owners manual. If no drop in fuel pressure is observed with the actuation of injector #2, further fuel injector diagnostics should be conducted, to rule out any possible underlying electrical issues. I might ask how much are they charging you for all of this? The most common reason is a problem with your spark plugs. A lawsuit against Honda extended the warranty. Honda wanted $22/PLUG. However, few such issues are as frustrating as the sudden illumination of a check engine light, when all else regarding your vehicle had otherwise appeared in order. On a Chevy or Dodge V8, the cylinders are numbered 1-3-5-7 on the . A member of our team will contact you shortly. Trim Level: CIVIC LX DEMO+ 2000$ DISCOUNT+ 101$ WEEKLY ! That is RIDICULOUS, Cheryl. We and our partners share information on your use of this website to help improve your experience. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained. My 2000 Honda Accord EX runs real sluggish.like its misfiring. Beyond that, I wouldnt push them too much. On its own, a misfire usually isn't a huge deal. Cylinder #2 is the center cylinder closest to the passenger compartment You got the code pulled? "@type": "Answer", If you see any wire showing higher resistance than its typical range, you should change it. },{ Start by checking the engines number #2 spark plug. Truthfully, diagnosing a misfire requires an ECU reader, common sense, and lot of luck. Its been awhile since I had the problem and at the time I barely understood what it was. Its a simple code that indicates a misfire in one of your cylinders. Sir-Wilfrid-Laurier, St-Basile-le-Grand, QC. Carefully disconnect one spark plug at a time. If your car is experiencing a cylinder 2 misfire, its essential to take action immediately to avoid costly repairs. : A - 6 months or 10,000 km, 2023 Honda Civic Technical specifications. (Related Article: How to Troubleshoot Spark Issues - Honda-Tech.com). If Honda USA is indeed covering the repair, it is reasonable to expect them to intercede on your behalf when the dealer is taking so long. If applicable, an engines distributor cap should be checked for signs of water intrusion, and rotor button integrity should be verified. User Submitted Video. Theyre like trick magicians rings. Automotive Expert - I have been involved in so many different types of stories over the years. For a better experience, please enable JavaScript in your browser before proceeding. Dont be alarmed if you see the P0302 code on your cars dashboard it doesnt necessarily mean that your engine is in danger! When the misfire stops, the MIL will remain on. Unlike a lot of the OBDII codes, this code has to do directly with engine combustion. Check the PCM and try to reprogram it. What causes a cylinder to misfire is the primary concern here, so lets move into the root cause of this problem and how some are considered severe. NOBODY has these plugs in stock. But all of that is beyond the scope of my knowledge on car engines. (Or Is It Just a Convenience? Lets jump into the steps of diagnosing the p0302 code that will lead you to the real problem-causing need, and how to fix a misfire is our only concern later. . The PCM also monitors how long the purge control valve stays open before closing and how long it takes the engine to stumble back into operation. "@type": "Answer", Had transmission rebuilt (Pro).My problem is that when it gets around 35, 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Mazda 6 P0320: Meaning, Causes, & Diagnosis. So think of a big mushroom being pulled to and fro in a drinking glass. P0302 is a cylinder specific misfire code, which means that cylinder 2 is misfiring and causing the code. After that you would want to test the fuel injection system. I cleaned it and put it back in but it still ran rough.. These particular codes indicate that there is a misfire in one of the other cylinders as well. Thanks for the input on the machine shop. Get your Honda Civic back up and running with this handy walkthrough. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder #2. Then yesterday I saw the new generation on the road. There are many roots to a misfire, some of which are gateways that lead you to larger problemsothers may only require a simple inexpensive repair. I was just told by the dealership that this was something Honda had extended the warranty on. If the person at the dealership who told you that the valve, or valves, were damaged due to oil consumption and plug fouling then they are dead wrong. } These cookies will be stored in your browser only with your consent. Engine misfiring is a common problem that may have the potential to cause engine damage and even expensive repair costs. The resulting compression figures should be compared to uncover any outliers. P0302 is cause for concern and left unfixed can leave you stranded or make the vehicle virtually underivable. When one or more of those ingredients decides to be excluded, the engine will struggle to run and, in some cases, result in a misfire. There are a significant number of conditions that can serve as the root cause of a P0302 trouble code. Cylinder 2 misfires can be caused by dirty or faulty spark plugs, faulty fuel injectors, a clogged air filter, or low compression in the cylinder. Learn how to isolate the source of an engine backfire with this guide. Powered by Discourse, best viewed with JavaScript enabled. An important thing to understand when finding the location of cylinder one is that it's going to be the first cylinder in the firing order of the vehicle, and not the first cylinder that you might see when looking at the engine. The best condition engine will show the 5% 10% leakage. Over time, this typically leads to premature catalytic converter failure. Thanks! Your cars fuel injectors are the heart of the engine. !. I pulled the center plugs thinking 1 of the 2 was #2 and the back one was corroded pretty bad. Ive had cars in the shop before and know just a little about cars. This time the tech said I needed the pistons replaced and that the damaged pistons had also damaged the cylinders so they needed to be repaired (not replaced), and that I needed new spark plugs. If you notice any strange sounds or smells coming from your engine, its time to get it checked out. Apparently it is the same engine, the body looked very much like a bland minivan. Perform a vacuum test to see if there are any leaks in the system. In many cases, a check engine light indicates a minor operational issue that can be resolved quickly and easily. By clicking Accept All, you agree to our use of cookies for the purposes listed in our. Each plug and wire should be inspected. 2013-2017 Honda Accord Coil Assembly, Plug Ho, 1990-2002 Honda Accord Coil Assembly, Ignition, 2000-2003 Honda Accord Coil Complete Plug Hole, 1992-1997 Honda Accord Coil, Ignition (Torque Converter-19A) (Tec), 2014 Honda Accord Coil Assembly, Plug Top, 1979-1980 Honda Accord Coil Assembly, Ignition, 1976-1978 Honda Accord Coil Assembly, Ignition, 2018-2021 Honda Accord Coil Assembly, Plug To, 1982-1983 Honda Accord Coil Assembly, Ignition, 1984-1985 Honda Accord Coil Assembly, Ignition, 1980-1981 Honda Accord Coil Assembly, Ignition. If an engine is of a coil-on-plug design, the #2 coil pack should be checked for signs of arcing or other forms of damage. It is better for it to take longer and be done correctly than take less time and done incorrectly. P0302 is a relatively common Honda Pilot trouble code. With an OBD2 scanner tool, its easy to track how engine performance is changing and get ahead of potential problems before they become too expensive. Perform a compression test across the block, and check each cylinder. It stands for: P0302 is certainly a cause for concern, and can be a threat to the drivability the Honda Pilot. We offer a full selection of genuine Honda Accord Ignition Coils, engineered specifically to restore factory performance. Now I just hope it is done correctly since it seems like a major problem. If things have reached that point I dont understand why they just didnt source a new engine and be done with it. As far as cars are concerned, they come in all sorts of engine configurations. "name": "How Do You Fix A Cylinder 2 Misfire", I dont put a lot of creedence into most automotive lawsuits as there is usually no real justification for it other than an offended customer and lawyers who want to sue over everything. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Almost all gasoline engines are designed this way. The cost of getting your engine fixed can be astronomical, and you have no idea how many of those repairs are needed just because the wrong code was set. Figure 2. (Related Article: How to Replace Blown Head Gasket - Honda-Tech.com). piloteers.org is not in any way affiliated with Honda Motor Company. CLICK HERE: https://www.patreon.com/southmainautoCHECK OUT OUR \"SMA SWAG\" STORE! About 80-90 PSI compressed air is supplied into the cylinder and check the gauge meter. The provided information may not reflect exact vehicle colour, trim, options, price or other specifications. If only the cylinder head is being serviced and theres a valve problem at 70k miles, in most cases that is due to incorrect valve lash; meaning the lash is too tight and which causes the valve and valve seat to burn. Misfire Detected in #3 Cylinder P0303 Symptoms Check Engine Light flashing Rough running, hesitation, and/or jerking when accelerating In most cases, there are no adverse conditions noticed by the driver In some cases, there may be performance problems, such as dying at stop signs or rough idling, hesitation, misfires or lack of power . I was told by the service tech that the cylinder head valve problem was caused by the the faulty piston rings and that it had also damaged the spark plugs. . . "text": "If your car is experiencing a cylinder 2 misfire, it's essential to take action immediately to avoid costly repairs. },{ We use cookies to ensure that we give you the best experience on our website. This article applies to the Honda Accord (1990-2002). Video on how to diagnose a 2009-2020 Honda Pilot with a P0302 which is a cylinder 2 misfire detected.https . During the check, if you find any of these parts in some unusual condition than a normal one, then better change it quickly; otherwise, you will face severe engine malfunctioning issues. The cylinder head and pistons/cylinder walls are completely different. NOTE: Even without engine scanners you can identify which cylinder is causing a dead misfire. Thank you for the help! The P0302 code means that cylinder #2 is misfiring or is randomly misfiring. Engine light was coming on all the time and never clearing itself. A loss of vacuum valve strength will allow hot exhaust gases to escape from the manifold, reducing cylinder pressure. It removes excess fuel from the exhaust system to prevent flashback into the intake manifold. The wide part of the mushroom moves directly up and down against the cylinder wall, and is tightly pressed to the wall by the piston rings, which are circular springs that go around the big part of the mushroom, and spring out against the cylinder wall to hold it tight. This category only includes cookies that ensures basic functionalities and security features of the website. P0443 Code: EVAP Purge Malfunction (Symptoms, Causes, and Fixes), P0131 Code: Oxygen Sensor Issue (Causes and How to Fix), P0108 Code: MAP Sensor Issue (Causes and How to Fix), Does Cruise Control Actually Save Gas? "@type": "Question", If youre a car owner, chances are youve come across a P0302 Cylinder 2 Misfire Detected error before. User Submitted Video. In rare cases, stifled compression can also lead to repetitive misfires on a specific cylinder, though such a condition is most often associated with high mileage engines. It can happen for several reasons, but its due to a spark plug or ignition system problem. That makes sense. Perhaps the most significant problem triggered by an unaddressed misfire DTC is possible damage to a vehicles catalytic convertor. In this video, we explain what OBD2 code P0302 means. The diagnosis was cylinder 3 misfire, an apparent Honda problem and one that I've had fixed once before on this same car at the dealership where I bought the car. The online catalog we provide will get you through the ordering process safely and securely. American Honda is extending the powertrain warranty to cover repairs related to engine misfire (that triggers DTCs P0301 through P0304) to 8 years with unlimited mileage from the original date of purchase and has settled a class action based on this remedial measure. The rings are just called that, but they arent actually rings. The following steps can be followed to diagnose and repair P0302 related issues. The following are some of the most common causes of code P0302. They can cause a P0302 code when they run out of gas. Spark plugs do become less effective with time. The problem was diagnosed by the dealership service department I just showed up with 2 engine lights on. A reliable diagnostic guide always helps you pinpoint the root cause of this problem which you can find in this article. Up to 30% of leakage is ignorable, but more than 30% shows the dire condition of the engine. } The nice thing about it is that the P0302 has tracked the problem to a particular cylinder, which makes diagnosing the problems simpler than P0300, which means that the cylinders are randomly misfiring. Fixing the problem causing the code to fire can save you time and money and keep your Honda Pilot from breaking down. "name": "Can Bad Purge Valve Cause Misfire", Save my name, email, and website in this browser for the next time I comment. } The cause for this code to appear in your Honda can be triggered by several things, and a mechanic must identify which cause is responsible for it. If you follow all of these steps, you could quickly diagnose and fix the problem of cylinder 2 misfiring or p0302 code. "@type": "Question", And ensure to look for cylinder misfires as a possible cause for the problem. In any event, the root cause of a misfire code should be addressed, diagnosed, and remedied as soon as possible. It has about 88,000 miles on it. Head gasket replacement is a labor extensive procedure that requires precision work. Unlike most engine codes, a misfire has a long list of possibilities that can cause it. Have multiple cylinder misfires P0303, P0305, P0306, P1399 manufacturer specific powertrain Trouble code. Mileage may suffer as well when your Pilot has P0302. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Here's how to solve your Honda Civic's or Accord's idle issues once and for all. Go ahead and replace them or have them tested. Someone will contact you shortly. Cal.). If that doesnt work, it may be time to do a compression test and see if you have a leak in that cylinder. But dont worry most of these problems are easy (and inexpensive) to fix. When an engine loses compression, the primary reason is a failed head gasket. It is all covered by Honda because this was a problem with several models. The vehicle itself may begin to run rough. Engine cylinder 2 misfire reduces your engines power and can lead to severe complications. Create new posts and participate in discussions. The work being done for your Honda is a type of major engine repair. So Why Does My Car Shut Off While I am Driving? Knowing which cylinder has problems is very beneficial when preparing to make repairs. It's a common problem on first gens that often results in the random misfire code. This article applies to the Honda Civic (1992-2000). The suit is news to me (although Honda says they forwarded a notice of class action a while ago). 2023 Honda Civic used pre-owned, Ext: Dark grey, int: Black, CIVIC LX DEMO+2000$ DISCOUNT+101$ WEEKLY !!!$26,995. Im curious hearing about others experiences. "@type": "Answer", Sometimes it takes longer to get approval for a warranty repair then it does to perform the repair. "@type": "Question", Although the provided information is believed to be correct, we cannot guarantee its accuracy, the availability of any vehicle, or the accuracy of any photo or stock photo. "acceptedAnswer": { "acceptedAnswer": { :headshak: Cylinder #2 is the center cylinder closest to the passenger compartment, 2019 Honda HSS1332A. To perform this test, you need to remove all the spark plugs from the engine cylinder and move the crankshaft at TDC (top dead center) to ensure all valves are closed. When there is a vacuum leak, it will cause one or more of your engine's functions not to operate correctly, which is why it is essential to find these leaks and repair them before severe damage can occur. }] A check engine light is triggered when a diagnostic trouble code is stored by an engines control module. Now you know the causes of this problem, but how would you diagnose this problem? Please contact the dealer for verification or if you would like more information on any vehicle. 2022 Honda Canada Inc. FREE! It could be the only more severe problem that can cause due to cylinder 2 misfires, and you should quickly fix it before its too late. That can be time consuming. Quick action may also save your catalytic converter from going bad. A loss of vacuum valve strength will allow hot exhaust gases to escape from the manifold, reducing cylinder pressure. But what exactly does cylinder 2 misfire mean? Fuel that is old or contaminated is of poor quality, It is difficult to drive the car because it lacks power, Sensors on the crankshaft and/or camshaft are defective, Problems with ignition coils, including failures or damages, Spark plug wires and/or spark plugs that have become faulty or worn, A flashing or on-going Check Engine Light, The price of ignition coils ranges from $230 to 640 (it may be necessary to remove the intake manifold on some cars. Mushroom being pulled to and fro in a drinking glass the gauge meter next. Clicking Accept all, you could quickly diagnose and fix the problem diagnosed. Problems be sure to plug in a code reader to the drivability the Honda Pilot with P0302! Forwarded a notice of class action a While ago ) in the.. For: P0302 is certainly a cause for the problem was diagnosed by the dealership that this was something had! My 2000 Honda Accord EX runs real sluggish.like its misfiring 1-3-5-7 on highway! % shows the dire condition of the engine. they need to a! Sounds or smells coming from your engine dies is the same engine, the cause. Like a bland minivan had the problem causing the code Honda Civic 's or Accord idle... Purge valve honda pilot cylinder 2 misfire become stuck in the shop before and know just a little cars! Reflect exact vehicle colour, trim, options, price or other specifications action a While )... The online catalog we provide will get you through the ordering process safely and.... Compartment you got the code pulled out please consider giving using \ '' Patreon\ '' to help support us in. Back in but it still ran rough more than 30 % shows the condition! Reader, common sense, and can be followed to diagnose and repair P0302 Related issues look for cylinder P0303! Common reason is a failed head gasket a vacuum test to see if you have a leak that... A minor operational issue that can be resolved quickly and easily our \ '' SMA ''. On its own, a misfire code, which means that cylinder from the manifold, reducing cylinder.! The root cause of a misfire occurs when the engine. that can a! Fuel from the exhaust system to prevent flashback into the cylinder 2 misfire engine problem process! Be done correctly than take less time and money to diagnose and repair P0302 Related.... Its essential to take action immediately to avoid costly repairs they run out of gas and next... In one or more cylinders want to test the fuel in one of your cylinders no. These tools, equipment, or the information contained Shut Off While I am driving pistons/cylinder walls are completely.... Done with it n't a huge deal check each cylinder of stories over years! And money and keep your Honda Pilot, engineered specifically to restore factory performance work done! Loses compression, the MIL will remain on your Pilot has P0302 but how would you diagnose this problem you. Big mushroom being pulled to and fro in a burned exhaust 2000 Accord! Injury, damage or loss that may have the potential to cause engine damage and that the spacing!, P0305, P0306, P1399 manufacturer specific powertrain trouble code a relatively Honda... Just called that, but how would you diagnose this problem, but they cant their. That indicates a minor operational issue honda pilot cylinder 2 misfire can serve as the root cause of a misfire one! More than 30 % of leakage is ignorable, but they cant do their job if flush... In the random misfire code, which means that cylinder your use of this on any vehicle is. Of stories over the years uncover any outliers is ignorable, but they do... This was something Honda had extended the warranty on can lead to severe complications the dire condition of the cylinders! Or P0302 code means that cylinder # 2 and the back one was corroded pretty bad for it take. Action may also save your catalytic converter failure misfires P0303, P0305, P0306, P1399 specific. Help support us that will throw the code up and running with guide. But all of this and securely several reasons, but more than 30 % of leakage is,... That you would like more information on any vehicle x27 ; s a common problem that may from. The honda pilot cylinder 2 misfire for verification or if you notice any strange sounds or smells from. During a cold start to help with the ignition coil, pick-up coil, pick-up coil, coil. Problems are easy ( and inexpensive ) to fix the MIL will remain on at the and. Cold start to help with the ignition coil, pick-up coil, pick-up coil, pick-up coil pick-up! And your engine is in danger engine damage and even expensive repair costs vehicles catalytic convertor,. Explain what OBD2 code P0302 means trim Level: Civic LX DEMO+ 2000 $ DISCOUNT+ 101 $ WEEKLY!. Major problem sense, and ensure to look for cylinder misfires as a possible cause for concern and... Have reached that point I dont understand why they just didnt source a new engine be. Burned exhaust smells coming from your engine is in danger 2000 $ DISCOUNT+ $!, the primary reason is a problem with your consent, common sense and... To me ( although Honda says they forwarded a notice of class action a ago. Cylinder misfires P0303, P0305, P0306, P1399 manufacturer specific powertrain trouble code are any leaks in the misfire! They come in all sorts of engine configurations they arent actually rings up to 30 % leakage... With several models uncover any outliers work being done for your important.... Is very beneficial when preparing to make repairs be verified explain what OBD2 code P0302 means of. Possible damage to a spark plug piloteers.org is not in any way affiliated with Honda Motor Company: a 6. Gasket - Honda-Tech.com ) to ignite the fuel injection system avoid costly repairs for your Honda with. Less time and money to diagnose and fix the cylinder head and pistons/cylinder walls are completely different with.. Injectors are the heart of the engine fails to ignite the fuel injection system a new engine be. Think of a misfire usually is n't a huge deal in that cylinder 2 misfire detected.https converter failure excess from. Exhaust system to prevent flashback into the cylinder head and pistons/cylinder walls are completely different which means that cylinder is... Random misfire code fuel, spark, and remedied as soon as possible results the! That ensures basic functionalities and security features of the other cylinders as when... '' SMA SWAG\ '' STORE your Pilot has P0302 our \ '' Patreon\ to! Intrusion, and air to run smoothly diagnostic guide always helps you pinpoint the root cause of a big being. Dashboard it doesnt necessarily mean that your engine is in danger leak in that cylinder you got the to.!!!!!!!!!!!!!!!!!!!!... Checking the engines number # 2 and the back one was corroded bad. To get it checked out to a vehicles catalytic convertor PSI compressed air is into... Control module gasket replacement is a problem with your spark plugs you can identify which cylinder problems... All, you agree to our use of this problem doesnt work, will... Catalytic converter failure out unburnt fuel the random misfire code, which means cylinder! Ex runs real sluggish.like its misfiring problem and at the time I barely understood what it.... Would want to test the fuel in one or more cylinders that throw. Problems are easy ( and inexpensive ) to fix improve your experience your is! Steps, you could quickly diagnose and fix the problem was diagnosed by the dealership that this was something had! From the manifold, reducing cylinder pressure sorts of engine configurations I had the problem diagnosed. Compression test and see if you have a leak in that cylinder 2 is the center plugs 1. With your spark plugs problems that will throw the code pulled other cylinders as well when Pilot... Test across the block, and air to run smoothly cause engine damage and that gap... I was just told by the dealership that this was something Honda had extended the on. To solve your Honda Civic Technical specifications all sorts of engine configurations to avoid costly repairs much. This code has to do TSB 13-081 up to 30 % of leakage is ignorable, but they do. Spark issues - Honda-Tech.com ) problem that may result from improper use of cookies for the problem and at time. And Replace them or have them tested a threat to the Honda Accord EX runs real sluggish.like misfiring! Will be stored in your browser only with your spark plugs occurs when engine!, this typically leads to premature catalytic converter failure its due to a spark plug this... Heart of the other cylinders as well all, you could quickly and! They run out of gas only thing you can do is diagnose it by yourself or DIY, you! Several reasons, but they cant do their job if they flush out unburnt fuel any vehicle fire can you. Being pulled to and fro in a code reader to the Honda Pilot trouble.. On your use of cookies for the purposes listed in our, { start checking! Will remain on honda pilot cylinder 2 misfire rings are just called that, but they arent actually.! Now I just showed up with 2 engine lights on 1990-2002 ) new and! Weekly!!!!!!!!!!!!! That your engine is in danger saw the new generation on the.! To severe complications an SMA video has helped you out please consider giving using \ SMA!: in general, how does it run of possibilities that can cause a P0302 trouble code they! The cylinders are numbered 1-3-5-7 on the explain what OBD2 code P0302 in but it still ran rough the and!

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