P0300 honda accord
Learn how to fix Honda DTC P0305 and understand the implications of Honda P0305 on your vehicle's performance. Dec 6, 2018 · Honda Accord P0306 Definition. i'm going to replace the O2 sensors, clean or replace the EGR valve, check the fuel pressure, change the fuel filter, and seafoam the engine. In contrast to a cylinder misfire, code P0300 indicates a “random misfire. fuel injector replacement and ignition coil and spark change change as well. leak down test, checked timing swapped coils and all was good. It is common for most auto repair shops to charge between $75 and $150 per hour. P0304 – Cylinder 4 Misfire Detected. Body and interior in good shape, engine sounds fine. Jump to Latest Follow Nov 25, 2019 · This video will help you diagnose and fix your Honda or Acura with an engine misfire and possible code(s) P0300 P0301 P0302 P0303 P0304 P0305 P0306 P1399 due Apr 30, 2024 · Code P0302 is part of this series. May 1, 2024 · P0304 Honda Meaning, Symptoms, Causes, And How To Fix. Therefore, the third cylinder would be referred to as cylinder number 3. There is a relatively common trouble code in the Honda Civic called P0304, which can occur in any vehicle. Sep 19, 2018 · P0302 in the Honda Accord is a common OBD II trouble code. Fallos en los inyectores de combustible. Coil #3 shows the same. #3 · Mar 23, 2011. This code indicates that your truck’s engine is misfiring and can be a drivability threat. Also, I’ve noticed that at low rpms it is really rough and a high rpms it smooths out. 1 person has answered this. 2. The issue I had was resolved by replacing the spark plugs and more specifically giving cylinder 2 a helix coil to fix the exploded threads when the old spark plug that was in it blew up. ”. Dec 1, 2021 · how to to solve or fix code p0301 p0302 p0303 p0304 on honda vehicules and any other vehicule using live data misfire not the ignition coil pack or spark pl Today the check engine light started flashing. Jul 9, 2023 · 5. 3L with a misfire problem. An important thing to understand when finding the location of Cylinder 5 is that it’s going to be the fifth cylinder in the firing order. Jan 29, 2020 · Having misfires on 2008-2012 4 cylinder accords? Replaced your starter recently? Your starter can actually be the issue. Consult a professional mechanic or refer to the vehicle’s repair manual for a more detailed troubleshooting process and steps to fix the issue. It is a very common code to see in Honda-made cars, vans, and trucks. Oct 28, 2007 · 4 posts · Joined 2007. El sensor del cigüeñal puede estar defectuoso. P0300 Random Cylinder Misfire. If no leak are found the next step is to replace the spark plugs. True misfires can be caused by faulty spark plugs, ignition coils, fuel injector, low fuel Engine misfire. May 16, 2020 · QUICK AND EASY APPLIANCE DIY REPAIR VIDEOS – SAVE BIG $$$ BY FIXING IT YOURSELF If the video was helpful, remember to give it a Thumbs Up 👍 and consider S . Repairing vacuum leaks. If the tip is super black, that means they are burnt. A P1399 trouble code in some Honda Accordsis usually caused by a fault or damage in the cylinder head, cylinder head gasket, and fuel injectors. The P1XXX codes are specific to the manufacturer, as the normal multiple misfire code is P0300. com Jan 7, 2023 · The P0300 code is telling us that there are misfires on several cylinders, which is much more often caused by an incorrect air-fuel mixture. Check engine light for P0303 code. P0303 Cylinder #3 Misfire. It won’t be the sixth cylinder that you might see when looking at the engine. 4L today. 0 v6 with a rough idle and codes p0300,p0301,p0302,p0303,p0304,p0305,and p0306. Jun 7, 2021 · Here we go againP0305: Cylinder 5 Misfire Detected. You can use a wirless bluetooh OBDII reader: https://amzn. I have a Pending P1399 [Manufacturer Defined] code. #1 · Oct 28, 2007. tofu2012. I'll show you the exact procedure This bulletin has been extensively revised. Sep 19, 2018 · P0300 is a generic OBDII code that can occur with the Honda Accord. I checked the codes. If you find the P0300 code and another P030X code, it is more likely to be an ignition issue on that specific cylinder. In P0303, the number 3 indicates that cylinder 3 has misfired. In most cases, a P0300 is accompanied by other trouble codes from P0301 to P0308. P0300 is another code for "random misfire". Most cars have between four and six cylinders, with each cylinder firing a spark plug continuously and smoothly. The misfiring happens when insufficient fuel is burned or when the spark plug gets damaged. Changed Crank Sensor, Both 02 Sensors and 4 coil packs and a new set of plugs again. P0300 code denotes “Random or Multiple Cylinder Misfire Detected. 0 The car is at operating temp and at idle. May 16, 2020 · HONDA ACCORD—P1399, P0301, P301 MISFIRE CODES - QUICK FIX How to see if you have a bad ignition coil causing misfires. 5L V6 engine. Engi Dec 8, 2020 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Oct 20, 2019 · Hey there. The service manual for 08-10 Accords you can download from this site doesn't have C0700 listed. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. Replacing damaged or worn spark plug wires and/or coils. The P0300 engine code indicates a misfiring cylinder problem in your vehicle. Check Engine Light is on or flashing. com/channel/UCidJ5DsrYj4xGojBfxKn3ZA?sub_confimation=1saludos el dia hoy les mostrarecomo solucionar Code P0300 Hondac Apr 12, 2009 · 7th Generation Honda Accord (2003–2007) Cylinder Missfire codes p0300-306. 2011 Odyssey. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes". Reset and went for a test drive. and the ck-engine lite comes on. 1-a steady check engine which is P0300/P0304 sometimes and always P0305/P0306=misfire. Feb 10, 2018 · I have an 04 Honda Accord 3. Reactions: kzepeda2125. When your car has a 12-cylinder engine, code P0301 indicates a misfire in cylinder 1 while code P0312 indicates a misfire in cylinder 12. The most likely reason your Accord will get P0300 and P0303 simultaneously is faulty spark plugs. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the engine. Mar 23, 2011 · 1186 posts · Joined 2011. Ensure that your Honda’s coolant levels are sufficient and that the cooling system is functioning properly. Apr 7, 2016 · Some misfire freeze frame. I checked codes and found a misfire code for everyone of the six cylinders. Test the fuel injector for proper operation. Begin by checking the spark plugs and their wires. Jan 19, 2024 · The Honda Accord P0302 code indicates a misfire in the second cylinder. com/ref/b Sep 9, 2012 · Your Honda Accord will have one or more of the following symptoms: The check engine light (CEL) will be on. Dec 19, 2021 · At 90K miles, engine began having intermittent stutter under heavy engine load between 3-4K rpms. May 2, 2022 · May 2, 2022 by Jason. One or more misfire codes will be stored in your Honda's PCM memory. P0301, P0302, P0303, P0304, P0305 and P0306. See full list on hondatheotherside. Dealer checked and found codes p0301 (#1 misfire) p0305 (#5 misfire) p0300 (random misfire). justanswer. This 2004 Honda Accord came in with the SES (or check engine) light on. Also tried some Meyer’s Mystery Oil in the gas tank. P0304 is a cylinder-specific misfire code, meaning only your Accord’s fourth cylinder has a misfire. After checking codes I got P0303, P0302 P0300 and randomly P0339. P0300 in the Honda Accord indicates random multiple misfiring, which means that multiple cylinders are misfiring at the same time. Apr 11, 2019 · Remember, the way the ECM determines misfires is via the crankshaft sensor, sometimes it throws up a P1399 as it can not determine which cylinder is misfiring. This code is not specific to any particular issue but rather points to a general fault in the system. Repairing or replacing leaking head gaskets. If no leaks are found the next step is to replace the spark plugs. Honda Accord & Crosstour (2003 - 2012) - P0302 & P0303 2008 Honda 4cyl - Hello I have a 2008 Honda Accord 4cyl with P0302 & P0303 codes and car running bad. Apr 30, 2024 · Explore in-depth about P0305 Honda - its meaning, symptoms, causes, and solutions. Looks OK. PROBABLE CAUSE Sep 19, 2018 · January 30, 2023 by Jason. 4. Apr 9, 2019 · The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. 3. It won’t be the fifth cylinder that you might see when looking at the engine. This one can also be seen with codes related to lean/rich and misfires. P0300 p0301 p0302 p0303 p0304 p0306. 6. Click here to order a new set of 6 i Apr 9, 2019 · P0300 2008 Honda Accord Code - Random Cylinder Misfire Detected - Code Popularity: 17,474 Views - Repair Importance Level: 3/3 - Repair Difficulty Level: 3/3. Cables de bujías dañados, desconectados o mal colocados. I changed plugs and problem stopped for 2 weeks now problem came back. I have enclosed the bulletin in the link below. Tune up 2006-2011 Honda Civic Oct 21, 2014 · I have an 08 2. 4 5 & 6) Does anyone know why my Long Term Fuel Trim on bank # 2 is -13. I just worked on a 2009 Honda accord EX 2. Aug 1, 2021 · What may seem like a catastrophic failure or a stretch timing chain and a Honda K 24 powered four-cylinder vehicle very well may be as simple as cleaning a f Nov 22, 2016 · Honda has released a service bulletin dealing with this type of misfire that calls for reprogramming the PCM (computer) . Engine vibration Dec 21, 2019 · HOW TO FIX CODE P0300 RANDOM MULTIPLE CYLINDER MISFIREIf your car has engine light on and code P0300 Random Cylinder Misfire Detected, we will explain what c Sep 29, 2018 · Compression test, replace spark plugs, diagnose and replace bad coil. 4L they're wanting to sell, cheap. When accelerating car in N it sounds like a misfire. Start by checking for intake leaks, intake gaskets are a common cause of multi-cylinder misfiring. 2005 EX 6 has CEL on and the codes p0300, P0301, P0305 which I understand refer to misfiring in the cylinder in the last number. Apr 9, 2019 · To diagnose the P0302 2009 Honda Accord code, it typically requires 1. Replacing faulty crankshaft sensor. Sep 8, 2023 · A P0300 engine code indicates a random or multiple-cylinder misfire has been detected by your car’s On-Board Diagnostic II (OBD-II) system. 4 Accord, 106k. Sep 19, 2018 · The P0700 code in your Honda Accord is a generic OBD-II code that indicates a malfunction within the transmission control system. Problemas en el catalizador. March 2017: 72,075 miles. May 12, 2020 · QUICK AND EASY APPLIANCE DIY REPAIR VIDEOS – SAVE BIG $$$ BY FIXING IT YOURSELF If the video was helpful, remember to give it a Thumbs Up 👍 and consider S Check your spark plugs. 5 v6 2008 with 80k miles. The P0306 code means that cylinder #6 is misfiring or is randomly misfiring. If the problem persists more tests needs to be done to diagnose problem, see "Possible Causes". Filtro de aire sucio o restringido. P0304 Cylinder #4 Misfire. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring. 0 hour of labor. These misfires aren’t just minor inconveniences. 58 mi) (984) 203-7709. Drivers may not notice any adverse conditions when driving. P0300, P0301, P0304, P0305, and P1399. This code indicates that your car's engine is misfiring and can be a drivability threat. Had this problem on my previous Nissan Maxima and traced it to the wrong spark plugs. https://www. If the engine is overheating, it can trigger limp mode. Sep 12, 2013 · P0300 - Random/Multiple Cylinder Misfire Detected My car is 08 Honda Accord Euro 2. Aug 16, 2023 · Code Tech Notes. 2-flashing engine check with rough engine , the flashing light does not come always but from time to time and It comes only after an engine start up and it goes Nov 15, 2021 · Here’s my story: We have a 2007 Honda Pilot with a 3. Here are some common engine misfire-related codes: P0300 – Random or Multiple Misfire Detected. Your donation to my channel is greatly appreciated, it would en Mar 13, 2022 · Having issues with a 2011 accord 3. Mar 14, 2016 · The crankshaft sensor and the knock sensor is used to determine the misfires. I searched C0700 on this website and your post is the only one that lists it. Or maybe they weren't installed tight enough which will cause a misfire. Jun 18, 2022 · 3. At 59,400 kms my check engine light came on. It indicates that your car’s second cylinder has a misfire. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. Grietas en la tapa del distribuidor. Look for signs of damage, wear, or carbon buildup. The coils are fired by the ECM, since the problem moved to cylinder 2 as the code P0352 is telling you I would say the cylinder 2 coil is bad. I have 3 confirmed codes and 1 pending code. American Honda recommends that you thoroughly read it. Here are the most common ways to fix the P0300 code: Replacing damaged spark plugs. Misfire Codes. Inspect the ignition coil for any cracks or other visible issues. Jan 20, 2024 · To diagnose a P0301 code in a Honda Accord, you can follow these steps: 1. Turned out to be a faulty coil in cyl #3, but took awhile to diagnose, as the coil I replaced it with initially was cracked from napa. . If the problem persists more tests need to be done to diagnose the problem, see 'Possible Causes'. Aug 16, 2023 · The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Check engine light just came on and started flashing, as well as every other warning that could come on! Car started to stutter and went into limp mode and would go past 20. Get to know about DTC P0305 Honda and P0305 Honda Accord. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder’s location. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. P0302 Cylinder #2 Misfire. P3400 is a generic OBD2 trouble code. Check engine light comes on. Dec 20, 2022 · Honda Civic P0300 Symptoms. Had 4 codes one for CKPS, cylinder 2 and 3 misfire and multiple misfire. Owner says it's misfiring at idle, and won't pass the State Emission Test with a persistent P0300. P0305 is a cylinder specific misfire code, which means that Cylinder 5 is misfiring and causing it. ago. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. May 31, 2006 · by Mackiewicz » Fri Jun 02, 2006 3:11 am. Replacing faulty camshaft sensor. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 4. They said the car has a CEL and that it barely goes. June 2018: On a 1,000 mile road trip with the family. In addition, it can damage your car’s catalytic converter in extreme conditions. It indicates that your Honda Accord’s cylinder deactivation system has a performance issue. P0301 Cylinder #1 Misfire. Have a look at it as it very likely may be the cause of the problem you are having. Before I knew about OdyClub, replaced all spark plugs and all coil packs. Nov 27, 2019 · A. I have scanned the car and came up with the codes P0303 (cylinder 3 mis) P0304 (cylinder 4 mis) and P0300 (random mis). For daily content follow me on instig Nov 6, 2021 · 581 posts · Joined 2020. I actually just joined this forum, but I’ve had my accord for awhile now. It indicates a misfiring or random misfiring of cylinder 4 when the P0304 code is displayed. Pl Mar 26, 2024 · The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Coil Packs were replaced with non-OEM. to/3esVRzzJoin Honey: https://www. My initial visual inspection didnt reveal much except that I could tell that this car has been "repaired" a few times! Apr 30, 2024 · An engine misfire or incomplete combustion in one of the engine cylinders may cause the P0303 code, which belongs to a series of diagnostic trouble codes starting with P0300. Looking at Stuff. I have codes P0300, P0301 and P0305. Fugas en la junta de culata. Dealer cleared codes and checked all fuel trim parameters with HDS and everything is ok. Problem progressively got worse until a check engine light Feb 17, 2024 · This 2006 Honda Accord V6 is running ROUGH at 205k miles. Jun 10, 2021 · SUSCRIBETE AQUI. Código de avería P0300. checked a few videos saying it was starter, crank position sensor, May 16, 2022 · These codes have a number at the end that refer to a specific cylinder. About 2 months ago, it started running rough and threw the random misfire code (P0300) and misfire codes for cylinders 2 and 5. I then put the spool back on, put the plug back in, and put the oil back in, filtering through a screen. 5 cold misfire on bank # 2 (cyl. I briefly checked it out the other day. Mar 26, 2024 · To diagnose the P0300 code, it typically requires 1. One or more misfire codes (P0300-P0306) will be stored in your Honda's PCM memory (if OBD II equipped). If it’s bad enough to cause your Accord’s check engine light to come on, you shouldn’t drive your car at all. Verify Coolant Levels and Cooling System. i am pulling the plugs and checking them, also checking the coils. The OBD-2 codes are P0300 (multiple mis-fires), P0302, P0305 and P0306 (misfires on cylinder 2,5,6. The misfires are sometimes not measured correctly hence the P0300 code for random misfires. P0302, P0303 are misfire in cylinders 2 and 3, respectively. Additionally, the P0700 code usually appears in conjunction with other transmission-related codes or shift Apr 13, 2022 · Don't be disingenuous, the vehicles included in that lawsuit are 2008-12 Accords, 2008-13 Odysseys, 2009-13 Pilots, 2010-11 Accord Crosstours and 2012 Crosstours equipped with six-cylinder engines that have variable cylinder management. P0302 is a real drivability concern and should be dealt with right away. P0339 crankshaft position sensor, and three misfire codes p0300, P0302 2009 Honda Accord Misfire. It is no longer limited to P0301, P0302, & P0300, it now includes P0304, P0306 & P1399. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). I think the CEL put it in safemode. Soonest availability ·. Sep 21, 2018 · 4’th Cylinder. The P0304 code means that the cylinder 4 is misfiring or is randomly misfiring. Repairing or replacing clogged EGR valves and/or tubes. Repairing P0302 should be considered Oct 14, 2018 · Honda Accord P0305 Definition. Sep 21, 2018 · P0303 + P0300. Same Jul 10, 2021 · 1751 Heritage Center Dr, Wake Forest, NC ( 47. com/aff_c?offer_id=2&aff_id=8172&url_id=10How To Fix Cylinder Misfire on 20 Feb 11, 2013 · Here are a few other symptoms you'll see with a misfire: The check engine light will be on. Jul 23, 2013 · Hey everyone, I have a 2001 Honda Accord EX Coupe 2. • 2 yr. Bobinas de encendido defectuosas o mal conectadas. Sep 5, 2021 · 2) Took off the oil plug and emptied the oil. Hmady said: Hi Honda community I have a Honda accord 3. To fix it, check for spark plug or ignition coil issues, perform a compression test, and inspect the fuel injector. The symptoms. 3) Finally, I pulled the air filter assembly so that I could get to the transmission valves to clean them. When a P0300 trouble code is triggered, it indicates that misfiring occurs in random or multiple cylinders. 4(Australian model), starter motor number: R40(SM-73002). Jan 14, 2023 · Code P0300 is often related to bad spark plugs or spark plug wires but could be caused by a number of issues relating to ignition and the air-to-fuel ratio in the cylinders. Where do I start? If you’re a Honda owner, P1399 might be an all-too-familiar sight on your vehicle’s dashboard. 0 Liter V6 Misfires. A code that’s peculiar to Honda vehicles, it rings alarm bells about random cylinder misfires. Engine doesn't actually run rough I think the customer confused the limp mode rev limiter with rough running. If cylinder 3 is very low that is your issue. How to stop random engine misfire code P0300 with check engine light on. #2 · Nov 6, 2021. 2004 Honda Accord 3. But what exactly is a misfire, and how does it affect vehicle performance? Apr 9, 2019 · To diagnose the P0300 2009 Honda Accord code, it typically requires 1. scan data shows a constant misfire on cylinders 2 & 3. Jul 31, 2012 · p0300, p0302, p0304, p0305, p0306. Honda TSB 23-026 Make: Honda Number: 23-026 Title: Software Update DTC P0300, P0301, P0302, P0303, P0304, or P0172 Date: 3/14/2023 Models: 2018-2022 Accord Summary: Thank you for watching this video. Each code indicates a misfire on a particular cylinder between P0301 and P0312. Took off the VTEC spool and removed the bolt. The spark plug fires a spark igniting Mar 24, 2013 · I know now that P1399 is an alternative code for "random misfire". Apr 8, 2021 · My neighbor has a 2009 Honda Accord 2. 5L Engine ALL - With DPSM Approval BACKGROUND Under certain circumstances, the vehicle may experience driveability issues, which may result in DTCs P0300 (random Sep 8, 2023 · El código P0300 puede tener varias causas, entre las que se encuentran las siguientes: Bujías desgastadas, sucias o defectuosas. The car tends to miss mostly when it is starting cold, warm it up and it runs pretty well. to/2X6mJ0Uregular OBDII reader: https://amzn. I hope it can help you to fix your own car and save money. Las válvulas o tubos EGR pueden estar obstruidos. Jun 3, 2016 · P1399 Honda Description When a misfire occurs, engine speed will fluctuate. Check for any leaks, inspect the radiator, and verify that the cooling fans are operational. I swap out crank shaft position sensor and 4 spark plugs and 4 ignition coils. Aftermarket starter. I recently had the same problem, except it was codes p0300 all the way to p0306. 8 and bank # 1 is 0. Worn starter. Nov 21, 2010 · I just had my beloved Honda smoged (CA) and 3 days later (today), as I pull off the freeway, it starts running very rough. Mar 19, 2022 · had codes p0300 p0302 and p0303 engine misfire codes that initially put car in limp mode. Jump to Latest Cylinder Missfire codes p0300-306. In this video, I'm solving the cylinder 2, 3 & random misfire issue on a 2008 Honda Accord with a crank position re-learn. Jun 7, 2023 · P1399 on Some Honda Accord Vehicles. Coil #2 primary side. Engine runs rough, hesitates, or jerks when accelerating. Your Accord’s engine will run just fine on all of its cylinders. Checked plugs, vacuum leaks , valve adjustment, compression test. In some cases, drivers may experience decreased fuel economy, fuel smell from exhaust, rough idling, or lack of power from the engine. They can lead to a range of issues from your car stuttering on the highway to it guzzling more gas Apr 26, 2015 · Still having issues? Ask a certified mechanic online here: https://trk. Car has slight jerking sensation does not register on RPM but almost a nauseating feeling. Jump to Latest Follow Honda Accord hybrid '07 without NAVI Silver 198k miles - sold Honda Accord Touring '13 MSM. La sincronización del encendido puede estar desajustada. How to fix a random misfire in your car DIY with Scotty Kilmer. if this doesn't work, then i'm going in for a valve adjustment. Replacement; DTC P0300, P0301, P0302, P0303, P0304, or P0172 AFFECTED VEHICLES Year Model Trim VIN Range 2016-18 Civic ALL with 1. There are many factors that can trigger this trouble code, including problems with the ignition system and fuel delivery, vacuum leaks, and engine mechanical issues, among others. youtube. As you know, those p0301 - p0306 codes are misfires for the individual cylinders and the p0300 is a randow misfire code, basically the ECM detects a misfire but cannot determine which cylinder is misfiring. Apr 9, 2019 · Code Tech Notes. With a code set for every cylinder plus a random misfire code P0300 I was pretty sure there would be a common Apr 26, 2021 · Code P0300 stands for “Random or Multiple Cylinder Misfire Detected. Basically the issue is, at start time the voltage falls too low and the the ECM does not get the right pulses from the crankshaft sensor. I've had my 2009 Accord EXL V6 into the shop 5 times now due to a misfire on cylinder 3 (code P0303). P3400 by itself is not a breakdown risk. P0302 – Cylinder 2 Misfire Detected. The confirmed codes are P0301 [Cylinder 1 Misfire Detected], P0303 [Cylinder 3 Misfire Detected], P0300 [Random/Multiple Cylinder Misfire Detected]. In most cases, the malfunction indicator lamp will flash on acceleration at 2,500-3,500 rpm once this code is set. P0303 – Cylinder 3 Misfire Detected. When the air/fuel mixture in your cylinder (s) is not able to burn normally and the difference is severe enough, it may cause a misfiring cylinder problem in your vehicle Oct 12, 2007 · i am getting the following CEL codes. A class action lawsuit happened with just 135 cases with Honda Accord - just 135. Inyectores de combustible obstruidos, sucios o defectuosos. That's my 2 cents on the situation. Codes P0300, P0302 and P0303 come back right away. ASE Certified Tech 34 years. This happens when there is a deficient amount of fuel being burned within a cylinder. joinhoney. Good luck. So before I swapped the coils I ran it a bit more and got more codes. I replaced the spark plugs, PCV valve, and air filter first. SYMPTOM The MIL comes on with DTC P0300 (random misfire detected), and/or P0301—P0306 (cylinder misfire detected), or P219A/B (air-fuel ratio variation of cylinder [bank 1, rear bank/bank 2, front bank]). P0300 is a generic OBDII code that can occur with the Honda Ridgeline. So, a dead end on that DTC. Clear all the DTC’s the moment I drove over 40mph and slow down under 20 it goes back to lymph mode throwing 3 codes for the misfire. I would make sure your battery is in good condition and all connections are clean and tight. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder #6. I've had a fuel injector replaced, the engine computer replaced and most recently, the valve seals (which was supposedly the final solution although I experienced the problem yet again). P0301 – Cylinder 1 Misfire Detected. gx wa hf zw sk qg zp qg dp wa