2013 mini cooper cylinder 3 misfire. This past week it started run.

2013 mini cooper cylinder 3 misfire. 5. Jul 26, 2016 · Having tried a lot of the common faults and fixes I've finally tracked down the misfire when cold on my 2008 MCS :) It's been driving me nuts trying to get to the bottom of it. I have noted the following behaviors: Mar 6, 2020 · Not Real Familiar With Mini's So Want To Get Some Second Opinions. Misfire means that the combustion process inside one or more cylinders isn’t happening properly. Everything else has been Apr 11, 2021 · Hello, I bought a 2012 hatchback base for a very good price because cylinder 1 and 4 were misfiring. I replaced spark plugs, swapped injectors #2 and #4, swapped cylinder #1 wire onto cylinder #2, chased coil pack wiring back to make sure A Simple Way To Diagnose a Misfire. Ive changed plugs, wires, Discover more answers 2008 Mini Cooper s, misfire on cylinder 3 code, replace the plugs and ignition coils and and code is back. A bad ignition coil or spark plug is the most common cause of a P0303 code, and that is also where you should start the diagnosis. Cleared the codes and keep getting the same back. Enjoy. Checked For Spark With Coil Out Of Cylinder. I have Misfire on 1 or 2 cylinders HELP *SOLVED* All times are GMT -5. Having searched the forums and googled it, this could be as simple as the camshaft position sensor. Carried out on my Mini Countryman Petrol. P0303 Code Definition The P0303 code stands for “Cylinder 3 misfire detected. Oct 11, 2024 · Hi All, So I had the unfortunate task of taking the wife's countryman to work this morning. I unplugged the other three "good" cylinders one at a time and they show significant engine chugging when unplugged, then return to normal when plugged back in. Under load while building boost from around 2000rpm to 2800rpm there's a misfire. When the air and fuel mixture burns within the Thank you all for tuning in to Super Mario Diagnostics! Today we are diagnosing a misfire concern on a 2006 MINI COOPER 1. Was told check engine light is on due to cylinder 3 misfire. In this case, cylinder 3 is the culprit. All saying misfires or misfire in cylinder 2. driving up on Monday whilst sitting in Jul 18, 2025 · Seeing a P0303 code? This guide helps you diagnose and fix a cylinder 3 misfire—covering causes, symptoms, and step-by-step repair solutions for smooth engine performance. we just had the dme/ecu repaired so that can’t be the issue. i just got informed that fuel isn’t coming from my mini coopers (2013 hardtop) cylinder 3 and 4 fuel injector. I cleared the codes, and p0303 keep coming back up. So i drive the remaining 40 miles steady with no probs . The service history, MOT and minor repairs all checked out however, I went on a test drive and after 5 mins the EML light Jan 5, 2018 · All times are GMT -5. You will often find this code together with another code of the specific cylinder the misfire occurred on. Misfire cylinder 1. Smog check due ( California) Jan 7, 2023 · What does the P0304 code mean? Get an understanding of the causes and symptoms of this trouble code and learn how to fix it. I've replaced the spark plugs and ignition coils myself. The time now is 01:26 PM. The dealer did diagnostics and said the plugs were bad, and I figured I would replace both coils and plugs to be safe. 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 link for the Oasis borescopehttps://www. In this case it’s cylinder #2. Found oil in coil leads to the DME, coils were dry. Why the n12 presents the misfire while the n14 Oct 28, 2022 · Mini r56 cooper s 2011 n18 misfire on cylinder 2 Jump to Latest 8. Either way I have a misfire and cylinder one. 3. A P0303 Mini code means that the the car’s computer has detected that one of the engine’s cylinders is not firing properly. The P0304 MINI code indicates a misfire in cylinder 4 of the engine. Nov 8, 2020 · Hi my 2013 mini S with 50,000 miles that recently had rapid decrease in horsepower; acceleration is less & my check engine light is on. My Wife's 2009 Cooper (petrol) had the engine light come on. Hello everyone, I am new here and need any assistance I can get. Did you know that the manufacturer put out a TSB on that exact problem?Here are some of the tools Mini Cooper misfires are caused by the failure of its engine ECU, common symptoms of failure include misfiring of the engine over one or more cylinders, and the fault code 140010 - Misfire Multiple Cylinders Detected. 3K subscribers 308 Mar 3, 2025 · Fix a P0303 code by diagnosing cylinder 3’s misfire. Some cars monitor coil primary circuit and spark discharge, some do not. Swaped fuel injectors 1 and 3 , misfire cylinder 1 . Jul 2, 2022 · Never Ending Misfire: Cylinder 3 & 4Plus, is anyone has any feedback of another cause that might be related to these codes? I was suspicous of the ground wire near cylinder 3 and 4 as they are using the same ground wire but it seems fine. It certainly I have a 2013 Mini Cooper with a small misfire no codes,while car running if I remove the oil cap a little bit of smoke EDIT: I've changed all the spark plugs. I’ve got a 2013 mini Cooper base no turbo and I’ve got like 30 psi compression one cylinder number one. If I let it run it stalls out. Spark plug, coil pack, fuel filter and fuel pump, failure of these parts can contribute to Aug 16, 2010 · Greetings, the other day a PO302 (cylinder 2 misfire) code appeared , so after researching all the threads I could find I started working my way through this. generally if cylinder 1 and 3 OR cylinder 2 and 4 are misfiring it has to do with spark. The engine sounded good, the car felt good too and the equipment level also was the Chilli and Media Pack. Oil sensor is dry. When I start it runs smoothly for a few seconds then revs drop a little and it's that chug chug Common causes of a mechanical misfire are worn piston rings, valves, cylinder walls, or lobes on a camshaft; a leaking head gasket or intake manifold gasket; damaged or broken rocker arms; defective fuel injectors (and/or the electronics that control them); and a slipped or incorrectly-installed timing belt or timing chain. Every time its happened it has been wet and ive been though a puddle and it starts to hesitate and misfire and before long it throws Nov 15, 2021 · More for the benefit of people looking for an answer to their hot idle misfire problem. May 27, 2024 · Code P0303 stands for “Cylinder 3 Misfire Detected” which indicates that there have been numerous misfires in engine cylinder 3. Learn what the P0303 diagnostic trouble code means and how to troubleshoot a misfire in cylinder 3 of your engine with AutoZone. He Sep 11, 2023 · Mini Cooper Misfire Cylinder 2 The misfire in cylinder 2 of the Mini Cooper is a recurring issue after the engine was pulled for a 6-speed swap. Also applies to most cars and definitely to Mini R53 R56 R60 Nov 14, 2023 · The P0300 code in a Mini Cooper indicates that there is a cylinder misfiring or randomly misfiring. And I have done a compression test and they all are the same. In this case it’s cylinder #3. A misfire occurs when the fuel-air mixture in the cylinder fails to ignite at the proper time, causing a disruption in the combustion process. Cancel anytime. The time now is 12:53 AM. Mini wouldnt even spring for the towing to get it in the shop. Jun 16, 2016 · Just purchased this 2010 Mini Cooper (Non Turbo)70k miles and developed this problem. In this week video we have a Mini cooper R56 cold start misfire FIX . ” What Does the P0303 Code Mean? The diagnostic trouble code (DTC) P0303 indicates that your powertrain control module (PCM) detects that cylinder number 3 is misfiring. This car came from a friend garage which was scratting his head for about 6 months chang Jan 13, 2016 · Hi All. swapped plugs and coil into cylinder 3 (misfire code remained in cylinder 2). This means that the fuel-air mixture in the combustion chamber of cylinder 3 is not igniting properly, resulting in a lack of power, rough idling, and potential damage to the engine over time. Sep 28, 2023 · cheap way to test plugs and coil packs is swap them around ie from a cylinder that dont misfire swap the coils across if misfires moves then it coil pack, if dont then try the plug if misfire moves then its the plug if dont then going to be deeper problem, then a smoke machine and compression tester needed , need a good level scan tool to read Apr 26, 2021 · Hi, im new to here, I have brought a mini that has a misfire, turns out no compression on 2, seemed like a valve problem so I have stripped the head down Apr 5, 2016 · the code p0301 means that there is a cylinder 1 misfire detected. While it may seem trivial, such a misfire can lead to serious repercussions for your vehicle's overall efficiency and functionality. I hope you Customer: 3 cylinders misfire Mini Countryman Mechanic's Assistant: I'm sorry to hear about the misfire issue with your Mini Countryman, but our BMW Mechanic will be able to help you diagnose and resolve this problem. In this case it’s cylinder #4. Brakes on Jan 7, 2023 · What does the P0302 code mean? Get an understanding of the causes and symptoms of this trouble code and learn how to fix it. Codes All Have To Do With Misfire In Cylinder 3, 2FAA,2EFE,2F01,2EE0,2EEA,2EE2 & 2EEC. I've been using the car to commute from my home near Bath Wiltshire to London twice a week and it has been great. I'm going to explain and talk about the common causes of an engine misfire on the R56 Mini Cooper S. The most common symptoms of a P0303 are a lit check engine light, acceleration issues, and poor vehicle performance. Startup to the same issue. I would check your spark plugs and ignition coils. I CHANGED THE PLUGS AND COIL PACKS AND STILL MISFIRE #4 CHECKED AND SPARK ON #4 IS WEAK COMPARED TO OTHERS, ANY IDEAS? Misfire cylinder 1. 6l Dual overhead cam. This has been an ongoing problem. Test the ignition coil for proper function and replace if necessary. They just tell us something is wrong somewhere. I am having trouble with my 2012 Mini Countryman Cooper S with engine lights coming on and the car going Jun 2, 2017 · It's me again. what else could it be, and how would they fix it? below is a video of what my car sounded like before it broke down. Engine management flashed and then came on with a couple of Lambda codes, which I expected with the decat and P0303 cylinder 3 misfire which I didn't. Code reader shows p2187 and p0303 Misfire on cylinder 3. However. No cable box or long-term contract required. Sep 11, 2024 · Uncover what a P0303 - Cylinder 3 Misfire code means for your vehicle, potential symptoms, and the steps to diagnose and fix the issue. Learn what Misfire Cylinder 4 means, location and how to repair. . What does this mean? OBD2 Code P0301 Mini definition: A P0301 Mini code means that the the car’s computer has detected that one of the engine’s cylinders is not firing properly. When it's cold it barely starts and i have to step The P0303 Mini code means that the cylinder 3 is misfiring or is randomly misfiring. what else could it be, and how would they fix it? Mar 30, 2021 · 2014 counteryman s all4 got a message saying reduced power and is currently is in limp mode. Mar 6, 2016 · I have a Mini Countryman 2013 and replaced the spark plugs and coils myself at 50000 miles after seeing multiple misfire cylinders. 2015 Mini Cooper misfire 2015 F56 2L 3dr Had a stuttering on cold startup and threw engine codes P0300, P0301, P0304. I've had the injectors out and the rail and fuel is pumping and firing through all injectors. Replace the spark plug in cylinder 2 if it is worn or fouled. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. Friend told Jan 29, 2024 · Any new insights based on the new information? ORIGINAL I have a 2012 Mini Cooper S Coupe with 55275 miles on it. 📚 Resources: What Causes an Engine to Misfire? A P0300 Mini diagnostic code indicates a random or multiple misfire. Nov 23, 2005 · Anyway pulled over and checked the code got P0300 Random/multiple cylinder misfire, cleared it and restarted . Does this sound correct? I am at a loss here. But codes don’t tell us what to fix. Aug 17, 2023 · The P0303 code signals a misfire specifically in Cylinder 3. 6L using an oscilloscope. I'll have a rough idle for a min or 2 and then it will idle Jan 3, 2018 · 2007 Mini Cooper Base model N12 engine 1. Replace or clean faulty parts, verify proper compression, and reset the code with an OBD-II scanner to restore smooth engine performance. All coils and spark plugs are new and firing. The mileage is 105k, and it's a steady misfire with the engine light on, showing code P0300. Oct 9, 2016 · Took a friend out in it, and after 2 minutes it developed a pretty bad misfire, which happens when using more than around 30% throttle. I have a misfire on cylinder 3 after the vehicle warms up. everything was ok again then floored it to check then all of a sudden the same happened:aargh: . Sep 26, 2022 · Hey, great information I really appreciate it. I scanned it using ista and it was showing a misfire on cylinder 4 and an o2 mixture fault. had compression check done (all good - only 5% leakage in cylinder 2 actually). This only happens when the engine comes up to full temperature and the rpm settles at its usual My cooper just went into limp mode 2 days ago. Recently started misfiring cylinders 1&3 when cold only. I replaced the ignition coils and all spark plugs which fixed the misfiring. It had 170,000 Km on the clock and had a mis-fire fault on cylinder Repair Information for P0304 MINI code. Jan 3, 2018 · Q: MULTIPLE MISFIRE CYLINDER CODES DETECTED 2012 MINI COOPER S asked by aNA on January 03, 2018 Jan 9, 2016 · A misfire is a misfire is a misfire. After the car warms up to operating temperature It develops a bad mis. Hope these ideas help you with diagnosis and you get fixed. In this video, Repair Information for P0015 MINI code. Oct 12, 2015 · DIY HPFP Replacement - How to replace High Pressure Fuel Pump on MINI Cooper R56 JCW - North American Motoring just found the guide Apr 2, 2023 · Hello, wonder if you can help? Got a 2014 MINI One 1. Parked mini for 10mins , no engine light no Dec 11, 2023 · I got these codes when scanned 2EFE,2F00,2EE0,2EE7,2EE2,2EE9. She called me Saturday to say the engine management light was on and it was running badly. I pulled the head off and had a machine shop replace all the valve seats. About 10 miles into the journey it started to misfire about the rpm you'd expect the turbo to be kicking in and the eml came on with the warning about driving at reduced load to avoid cat damage. I have done quite a few things to the vehicle. I've changed the ignition coils Recently I bought a Mini Cooper S 2011, when I bought it, it seemed in very good condition. The diagnostic code P0303 for a MINI vehicle indicates a misfire in cylinder 3 of the engine. But now I'm getting an intermittent misfire on cylinder 1. , if the generated code is P0302, the number 2 indicates that cylinder number 2 has a misfire. So, I'll just get into it. I have a 2013 Mini Cooper, it has… Nov 13, 2009 · Since I bought my new cooper S back in march I have been having problems with it when out in wet weather. I asked him if there was any faults just to tell me as id get it sorted but nope its all been done. Checked and replaced all 4 plugs, were pretty nasty, and old. THEN ONE MORNING IT STARTED TO MISFIRE CYLINDER 4. What are the repair options for fixing OBDII code P0015 in a MINI? Sep 22, 2023 · 2012 Mini giving PO303 code. The car has done nearly 50k which is probably quite a lot for an N14 engine so I went through the list of common Mar 4, 2025 · Tags cooper s cylinder misfire n18 r56 Jump to Latest 324 views 5 replies 4 participants last post by ponytailshorsehair Mar 4, 2025 J J Aguilar Discussion starter 2 posts · Joined 2025 #1 ·Feb 28, 2025 Feb 3, 2022 · Hey up im Kev from Scotchland (not my fault lol) here's my motors got a cooper but has a miss fire under load, chap that sold me it knew all about it as he bought it like that & didnt crack on. com/. BMW ran what they call a DME scan for operational smoothness which showed that results were too high in cylinder 2 (I have no idea what that means). The car will run great for Jun 29, 2016 · Mini Cooper 2001-2006: Why is My Car Misfiring? Misfires can be caused by many variables with 1st generation Mini Coopers, and it can be really frustrating figuring it out. I bought it used and have had it for 6 months or so. 6 petrol, going into limp mode and showing error code P0302. This could be a faulty / incorrectly gapped spark plug, failing coil pack, dirty connection on the wiring to the coil pack / loom connector or even a broken wire. In some cases, if the problem causing the misfire is temporary—like moisture or a brief fuel inconsistency—the check engine light may turn off after a few driving cycles. After We experienced a misfire on cylinder #3 during our coast-to-coast road trip. Each cylinder contains different components. Learn what Combustion Misfires Several Cylinders means, location and how to repair. Jan 18, 2021 · Unplugged the "bad" cylinder before I started car, and then after I started the car and there is no change in engine operation. I Jan 18, 2025 · What does the P0303 Cylinder-3 Misfire Detected mean? P0303 code gets triggered when the Engine Control Module detects an engine misfire on cylinder-3. The coil in cylinder 4 has rust on it, but the spark plug still sparks when i start the car with it out of the cylinder. Jul 25, 2019 · Misfire cylinder 3 - I have a 2005 mini cooper i just picked up. Despite changing plugs, coils, injectors, and the fuel pump, the P0203 misfire code persists. Once the car warms up it’s gone. If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back. Loss on what I have a 2014 mini clubman s that has a misfire on cylinder 1 i have replaced the fuel injectors,spark plugs. Jan 7, 2023 · To fix the P0303 code, you need to diagnose and determine what is causing the misfires on cylinder 3. 2008 MINI Cooper S w/ dealer-installed JCW package (chip tune, larger air intake, larger cat-back exhaust). How to Fix P0302 MINI Diagnose the specific cause of the misfire by performing a thorough inspection of the spark plugs, ignition coils, fuel injectors, and compression levels in cylinder 2. Jul 6, 2019 · 2) Swapping the spark plugs around seemed to make it last longer before throwing the codes - I managed 50-odd minutes code free this time before 'Cylinder 4 misfire' and 'System too rich Bank 1' reappeared - again after idling for a while when warm, which is the pattern that has developed. Same exact issues on startup. A vehicle engine usually has 4, 6, or 8 cylinders. This can lead to a rough idle, decreased fuel efficiency, loss of power, and potential damage to the catalytic converter over time. Here is a chapter lis Feb 14, 2022 · Have a 2008 mini cooper r52 with 162733 miles on it. Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. Attached Images Appreciate 0 Tweet Quote 07-01-2022, 10:19 AM # 2 Hoa Lieutenant Colonel 882 Rep 1,776 Posts Drives: BMW Join Date: May 2010 Location: GA Sep 4, 2024 · P0303 Code: Cylinder 3 Misfire Detected due to a faulty spark plug/spark plug wire, a damaged camshaft sensor, a bad ignition coil, or a vacuum leak. Diagnostic trouble codes, like the P0303, indicate which cylinder is experiencing the misfire. Any number of things can cause a cylinder not to fire properly. What does this mean? OBD2 Code P0302 Mini definition: A P0302 Mini code means that the the car’s computer has detected that one of the engine’s cylinders is not firing properly. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 3. Which cylinder is #3? Looking from the nose to the windshield, is the order 1-2-3-4 or 4-3-2-1? Jun 14, 2022 · Hi all, Wife has a 2013 countryman 1. A misfire on cylinder 3. Jun 12, 2023 · So I have been dealing with a misfire in cylinder 3 for about a month. Just wondering if anyone has any ideas or has had a similar problem. Oct 22, 2024 · This trouble code signals a misfire in cylinder 3, which usually indicates an underlying issue that needs addressing. In this guide, we will delve into the specifics of the P0303 code, detailing its significance in automotive diagnostics. Misfire on cylinder 2. I was travelling along on Saturday in that lovely weather doing 60 MPH when someone pulled out right in front of me and didnt accelerate - lovely. May 13, 2015 · P0303 is a misfire detected on cylinder 3. Spark plugs look fine. So I scanned it and got the code P0015 which apparently is "B" Camshaft Position - Timing Over-Retarded. does that sound like a misfire? Nov 2, 2022 · Hey guys, I have a 2009 clubman S with 125k miles. Hi guys I'm running out of hair to pull out. So just replaced all my coil packs today. Ran a compression test and got these results: Cylinder 1 120 Cylinder2 150 Cylinder 3 148 Cylinder 4 150 Mechanic says the 120 is not enough to cause the misfire and he believes it is electrical because it is interermittant. Live TV from 100+ channels. This code is often triggered by various issues related to your engine’s ignition and fuel systems. I have new oem coils, and new ngk iridium spark plugs. Struggling with a P0303 error code? 🚨 The P0303 code stands for Cylinder -3 Misfire Detected, indicating your engine is misfiring on cylinder 3. oasisscientific. Apr 22, 2023 · My misfire codes now are all P0300-P0303 2EE2: Combustion misfiring, several cylinders: damaging exhaust gas after start sequence 2EEC: Combustion misfiring, cylinder 3: damaging exhaust gas after start sequence 2EFE: Combustion misfires, several cylinders detected 2FO1: Combustion misfire, cylinder 3 detected Previously had a MAF P0102 before the refresh and haven’t gotten it to reappear Mar 15, 2024 · It could be the wiring to the injectors on 1 and 4? Mar 14, 2023 · This has been an ongoing issue with my car for years but I've never got to the bottom of it. 2010 Mini Cooper Intermittent same Cylinder misfire Easy fixed Bethel Mobile 176 subscribers Subscribed Jul 28, 2016 · Mazda MX-5 Miata vs Mini Cooper S_ Fun in Different Ways What does this mean? OBD2 Code P0304 Mini definition: A P0304 Mini code means that the the car’s computer has detected that one of the engine’s cylinders is not firing properly. I’ve put 4 new In this video we troubleshoot and diagnose a misfire code P0304, however this will work on any misfire code. Apr 26, 2021 · Hi, im new to here, I have brought a mini that has a misfire, turns out no compression on 2, seemed like a valve problem so I have stripped the head truehi !!! i know this sub is probably tired of seeing me but i’m an 18 year old that knows nothing about cars so. Oct 20, 2019 · 3. It starts to misfire violently and feels very hesitant. If you have an n12 engine that is suffering from a hot idle misfire, it is likely that you have a loose inlet valve seat on the cylinder that is misfiring. A P0302 Mini code, for example, would tell you cylinder number two is misfiring. Had it diagnosed at a dealership and mechanic and was told it was a fuel injector. I thought everything was fine after resetting my ECU last week, but had bad misfiring at idle again this morning which set the random misfire code. Check Plugs & Coils And Swapped Cylinders. which can be most likely attributed to defective spark plugs or a faulty coil pack these two photos will show you where the sparkplugs and coil packs are located on a n14 or n18 engine::wink:: Diagnose and repair 2013 Mini Cooper P0304,P0303,P0302,P0301 Jimthecarguy 209K subscribers 556 Apr 2, 2017 · do a compression test including a leak off test on 3 and 4 cylinder, i and done loads of these mk1 engines with head gasket blown between cylinders before throwing parts at it check this like that,, easy head gasket to do on those no special locking tools needed. RB The Mechanic assumes no P0303 is an OBD2 scanner code that can mean your car is in serious trouble. Also recently cleaned the intake valves and that did not solve issue. How can I diagnose the OBDII code P0015 in my MINI? - Diagnosing the code P0015 involves using an OBDII scanner to retrieve the code, inspecting the camshaft position sensor, checking the timing chain for wear, and ensuring proper oil pressure to the camshaft phaser. Stays In #3. I have changed all spark plugs and coil packs twice, changed all injectors, changed thermostat, changed valve cover gasket, changed MAF. He wants to replace the computer. So I decided Jun 14, 2020 · Repair Information for P0300 MINI code. About a week ago, when starting up the engine started having misfires. Dec 6, 2024 · Hello, I have a 2009 Mini One. To understand the P0303 trouble code, you must delve into the potential causes of a misfire in cylinder 3. Have you noticed any other issues or issues with your Mini Countryman besides the misfire in the 3 cylinders? Customer: no only 1 2 and 4 cylinder misfire Mechanic's Assistant How to fix P0303 Code: Cylinder 3 Misfire Detected Amazon Link Spark Inline Tester Tool https://amzn. RB The Mechanic assumes no liability for property damages or injury incurred as a result of any of the information contained in this video. I have tried thinking through the problem, capturing frames from my BOSCH Bluetooth connector, and recording videos. I swapped the plugs and coils Feb 20, 2024 · A misfire occurs when there’s a lack of combustion in the cylinder, leading to rough engine performance. Sep 27, 2024 · A little background; I purchased a 2008 Mini Cooper Base with the N12 in November 2022. That's all the information I have. Mar 27, 2023 · Hello, Any help would be greatly appreciated. Warranty just ended 2 weeks ago. to/465UWj7 An engine misfire is when a cylinder has an incomplete combustion ignition or has no Jan 5, 2017 · 2009 Mini Cooper S Misfire - I have a 2009 Cooper S with about 114k. Mini seems good 85kms later mini has check engine light and misfire. Apr 3, 2010 · 2nd Gen R56 Cooper S P0302 Cylinder 2 Mis-Fire Discussion in ' 2nd Generation: 2007+ R55 through R61 ' started by grodenglaive, May 11, 2012. 4. I drive a 2012 countryman all4 s and recently my cylinder 3 started misfiring. The others are all up higher over 150psi I had a weak battery so it could’ve been a little higher. Details are in the video, as are the diagnosis and repair. I checked it and it’s got some oil around the spark plug( don’t have the tool to take the spark plug out). We would like to show you a description here but the site won’t allow us. The author suspects a loose ground or the main injector harness connector from the engine pull. 9K views 2 replies 3 participants last post by Daveslate Jan 8, 2022 Spark: Spark issues normally isnt all 4 cylinders misfiring its normally 1 or 2 that are misfiring. Find out the exact meaning of the fault code p0303, its possible causes, and tips for eliminating it – all for free. g. Dec 9, 2024 · Page 1 of 3 - Sudden Major Misfire And Nasty Noises - posted in Problems, Questions and Technical: Looking for help with an engine issue to work out what the problem is, what the probably cause is, and how to prevent it happening again. In this case it’s cylinder #1. I initially had a valve seat issue (it dropped out). Learn what 'B' Camshaft Position Timing Over-Retarded Bank 1 means, location and how to repair. Code P0301 MINI Description The diagnostic trouble code P0301 for MINI vehicles indicates a misfire in cylinder 1 of the engine. Any ideas? Well that’s exactly what is happening, the engine shudders and splutters causing the car to shake but there’s no fault codes stored and it doesn’t show up on the Mini dealers “misfire Aug 4, 2022 · « Previous Thread Next Thread » Misfire Codes, Damaging Exhaust codes, HELP Jun 5, 2023 · P0301 #1 cyl misfire, lots done, code remains, where to go next? Hello Mini owners, I've only had a Mini for about a year and this is the first time I had a cylinder misfire issue. Replaced all 4 spark plugs. The only original parts in the engine bay are the inlet manifold, wiring loom and ECU. P0303 is typically caused by problems with the ignition system, faulty fuel injectors, or damage to the engine. Customer: 2012 Mini Cooper has a cylinder misfire even after I replaced the spark plugs and ignition coils. I got the codes pulled and it is a misfire on 2 & 4. Swaped coil cylinder 1 with cylinder 3. Jan 7, 2023 · What does the P0300 code mean? The code P0300 indicates there are repetitive misfires on one or more cylinders in your car. A misfire occurs when there is a lack of combustion in the cylinder, resulting in a disruption of the engine's normal operation. N Oct 30, 2024 · A misfire occurs when the combustion process in the cylinder is incomplete or not occurring at all, which can result from issues with fuel delivery, ignition or compression. I have an 08 Mini Cooper S turbo 98k miles automatic. This past week it started run Common causes of a mechanical misfire are worn piston rings, valves, cylinder walls, or lobes on a camshaft; a leaking head gasket or intake manifold gasket; damaged or broken rocker arms; defective fuel injectors (and/or the electronics that control them); and a slipped or incorrectly-installed timing belt or timing chain. I use the FIXD tool and this is what came up 1 - Solenoid switch value latched in TCC position 2 - Low Coast brake solenoid value function 3 - Step motor Jan 12, 2010 · Hey ppl, I would be grateful for any insight into this problem I own a 2002 R50 Cooper with just under 50k on the clock, in the last 6 months the engine has begun to misfire whilst idling in traffic. 4K views 15 replies 3 participants last post by mike1967 Nov 14, 2023 S Jun 18, 2023 · I RECENTLY PUT NEW VALVES IN MY 09 MINI CLUBMAN AND TIMING CHAIN AND RAN GREAT FOR ABOUT A WEEK. This is a quick diagnosis on a random misfire for this mini! Hope is helpful. Read on to learn what to look for and resolve the problem in your own garage. Check the spark plug, ignition coil, and fuel injector for issues. Car only has 49k miles. 6 cooper s all4 that's done just over 70k. The missing got really bad a couple of weeks ago. 2008 Mini Cooper S Cylinder 3 Misfire: Next Steps After Coil and Plug Replacement Mini Cooper S often faces recurring cylinder misfires and ignition coil failures causing rough idling and poor performance. Aug 18, 2021 · 2014 Cooper S Engine Misfire engine engine misfire Jump to Latest 6. Jun 22, 2017 · Hi all, First post as I've only just subscribed although I've been reading and enjoying the forum since getting my R53 in March. Jun 22, 2020 · Hi all, So my daughters 57 plate mini one started to run really lumpy and threw up p303 code ( no others), so I popped the lid and cylinder 3 coil had no clip on it and a crack through the 3 pin connector! Result! Here is a very common problem that causes a random misfire. If the last digit of the trouble code is not zero, e. P0300 - random misfire P0301- Misfire cyl #1 P0303 - Misfire cyl #3 Good ol` spark plugs and coils will fix the job? 2008 Mini cooper misfire diagnosis p0300 p0301 p0302 p0303 p0304 bad ignition coil Paul Kelley 16. Our guide will help you identify the symptoms, possible causes, and more. ntnsrf fvkq tfnd kezmrbn wkf wldjiwa pxt lkr ejrn glvs