P0300 honda

P0301, P303, P0304, P0300, P1399 Misfire codes. Started up my car today after work, and the CEL came on. Had it read at AutoZone and they said these are the codes and that the valve lash needed adjusted (Codes in title). Thing is I just had the mechanic adjust the valve lash 9000 miles ago. So I doubt that is it.

The code p0300 will activate if the differential of these misfirings is more than two percent. If the impact is between two and ten percent, the check engine light will come on. Hopefully, the misfirings won’t affect the rpm more than 10 percent, as that is a serious problem. In that case, the check engine light will flash on and off to warn ...P0300 Sometimes PLEASE HELP. I have an 04 CRV with 220,000 miles and it misfires occasionally at idle. It gets worse after I drive it for 20 minutes or more and it is especially bad with the AC on while in drive. (Automatic) I have tried everything I can think of to diagnose it. I have done a compression test, the old starting fluid vacuum leak ...P0302 DTC means that there’s an engine misfire in cylinder 2. The Powertrain Control Module (PCM) detects that a misfire is occurring in the 2nd cylinder in the car motor, thereby alerting the engine to set this trouble code. It’s a generic code, applying to all OBD-II equipped models. While the P0302 trouble code might be considered ... If it varies beyond 2 percent, the Monitor will set a P0300 code and illuminate the Check Engine Light. If there is more than a 10 percent variance, the Check Engine Light will blink or pulse in a steady manner to indicate that a harmful Catalytic Converter misfire is occurring. When diagnosing a P0300 code, it is important to record the freeze ... ridgelineownersclub.com is an independent Honda enthusiast website owned and operated by VerticalScope Inc. Content on ridgelineownersclub.com is generated by its users. ridgelineownersclub.com is not in any way affiliated with Honda Motor Company VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, CanadaP0302 in the Honda Element is a common OBD II trouble code. It indicates that your vehicle’s second cylinder has a misfire. P0302 is a real drivability concern and should be dealt with right away. ... P0300 in the Honda Element indicates random multiple misfiring, which means that multiple cylinders are misfiring at the same time.

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. 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 ... Mar 26, 2024 · To diagnose the P0300 code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per hour. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...P0300 is a generic OBDII code that can occur with the Honda S2000. This code indicates that your car’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring).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...Si tienes un auto Honda, es posible que alguna vez hayas visto el código P0300 en el tablero de instrumentos. Este código indica que hay un problema con el sistema de encendido del motor, que puede causar una pérdida de potencia, un aumento del consumo de combustible y una mayor emisión de gases contaminantes.

Hey everyone, I have a 2001 Honda Accord EX Coupe 2.3L with a misfire problem. I have scanned the car and came up with the codes P0303(cylinder 3 mis) P0304(cylinder 4 mis) and P0300(random mis). ... (cylinder 3 mis) P0304(cylinder 4 mis) and P0300(random mis). Also, I’ve noticed that at low rpms it is really rough and a high …If you want to fly private between California and New York nonstop, you'll need a midsize jet or larger and at least two pilots. However, Honda Aircraft Comp... If you want to fly ...What Does Honda Civic Code P0300 Mean? Honda Civic P0300 definition: Random, Multiple Misfire Detected. Issue Severity: SEVERE – Stop driving immediately. Repair …To diagnose the P0300 2009 Honda Accord code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per hour.

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The 1975 Honda CB400 motorcycle was affordable, technically advanced, and deceptively quick. Learn more and see pictures of the lean 1975 Honda CB400. Advertisement The 1975 Honda ...Jan 7, 2023 · The code P0300 indicates there are repetitive misfires on one or more cylinders in your car. You will often find this code together with another code of the specific cylinder the misfire occurred on. If the last digit of the trouble code is not zero, e.g., if the generated code is P0302, the number 2 indicates that cylinder number 2 has a misfire. A.Hmady said: Hi Honda community I have a Honda accord 3.5 v6 2008 with 80k miles. The symptoms. 1-a steady check engine which is P0300/P0304 sometimes and always P0305/P0306=misfire. 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 …Sep 8, 2023 · Si tienes un auto Honda, es posible que alguna vez hayas visto el código P0300 en el tablero de instrumentos. Este código indica que hay un problema con el sistema de encendido del motor, que puede causar una pérdida de potencia, un aumento del consumo de combustible y una mayor emisión de gases contaminantes. Engine misfire. How to fix a random misfire in your car DIY with Scotty Kilmer. How to stop random engine misfire code P0300 with check engine light on. Engi...Code P0302 is part of this series. Each code indicates a misfire on a particular cylinder between P0301 and P0312. 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. In contrast to a cylinder misfire, code P0300 indicates a “random misfire.”.

The P0300 code is a diagnostic trouble code (DTC) that indicates a random or multiple cylinder misfire has been detected in the engine. This code is often accompanied by other misfire codes, such as P0301, P0302, P0303, P0304, P0305, P0306, P0307, or P0308. A misfire occurs when the fuel in a cylinder fails to ignite properly, causing the ...Misfires in Cylinder 2/3. (P0302/P0300) I didn't do any compression test considering there was nothing that pointed to that being a problem. So, proceeding with troubleshooting I decided to change the spark plugs to HKS Super Heat from Evasive Motorsports. Two days later, I thought it was fixed everything was working fine.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. If you find the P0300 code and …Você já se deparou com o código de falha P0300? Vem aprender com nossos consultores OB, Diogo e Laerte, se realmente é uma falha de ignição ou não!Para ficar...10 posts · Joined 2023. #1 · Aug 15, 2023 (Edited) 2005 EX 4WD 187,700 miles with check engine light and random misfire codes P0300, P0301-P0306. Rough idle regardless of engine temperature. Runs great when driving under any kind of load. Great, smooth acceleration with plenty of power.American Honda is extending the warranty on failed fuel injectors as determined by the procedures in this bulletin to 10 years from the original date of purchase or 150,000 miles, whichever comes first. ... • P0300 - P0304 - Follow Inspection Procedure A only. • P219A or P0420 (only) - Follow Inspection Procedure B only. ...2010 Honda Pilot p0300, P0301,P0302, P0303. A Few days ago I bought a 2010 Honda Pilot. To begin with the truck has about 178k miles. when i started the truck the first time it was smoking a lot. The first thing I did is change the spark plugs and coils since there was a misfire.Sep 19, 2018 · P0300 is a generic OBDII code that can occur with the Honda CR-V. This code indicates that your vehicle’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). Aug 16, 2023 · The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are a common cause of multi-cylinder misfiring. If no leaks are found the next step is to replace the spark plugs. If the problem persists more tests need to be done to diagnose the problem, see 'Possible Causes'.

Tengo un honda civic SI 2012 , después de cierto tiempo, marca el check pero en forma intermitente y al pasarel scanner marca los códigos P0300, P0301, P0302, P0303, P0304, ya le cambie, bobinas, inyectores, alternador, computadora, crasfman, sensor de bateria, tiene 150 de compresión , revise bomba de gasolina, pero no mejora puede ayudarme ...

If you’ve recently found yourself staring at your Honda’s radio, unable to unlock it because you don’t have the code, don’t worry – you’re not alone. Many Honda owners face this fr...Code: P0300. Definition: Random Misfire Detected. Description: The execution time is once per driving cycle and the duration time is 200 revolutions for Type 1 and 1,000 revolutions for Type 2. Conditions for illuminating the MIL Type 1 and Type 2. Misfire Type 1 (Severe) Per 200 revolutions 27-90 times. If a type 1 misfire (catalyst damaging ...2006 Honda Pilot 3.5 L codes P0300, P0301, P0302, P0303, P0304, P0305, P0306 and P0137, I now the 02S is broken, - Answered by a verified Mechanic for Honda We use cookies to give you the best possible experience on our website.The trend is not limited to metropolitan areas. Despite the poor economic sentiment in India—that has caused massive layoffs and steep pay cuts—Indians are more willing than before...What Does Honda Civic Code P0300 Mean? Honda Civic P0300 definition: Random, Multiple Misfire Detected; Issue Severity: SEVERE – Stop driving immediately; Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions16 May 2020 ... 44:07. Go to channel · 2006 Honda Odyssey 3.5 Random Misfire Case Study Part 1 : Diagnosing the P0300, P0301, P0302, Etc. GoTech•255K views.2008 Ridgeline issues, P0300 All cylinders misfiring, CEL on and blinking and VTM-4 light on - Fixed (for now) ... Content on ridgelineownersclub.com is generated by its users. ridgelineownersclub.com is not in any way affiliated with Honda Motor Company VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada ...Codes P0301, P0302, P0300. 2001 CVT 120k miles. CEL and above codes. Car was running fine and suddenly had CEL, loss of power, and obvious misfire, running rough.

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P0300 is a generic OBDII code that can occur with the Honda Element. This code indicates that your vehicle’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring).El código P0300 indica que el ECM ha detectado que uno o más cilindros no están cumpliendo su función al momento de realizar la combustión. Página principal; ... Tengo un honda civic SI 2012 , después de cierto tiempo, marca el check pero en forma intermitente y al pasarel scanner marca los códigos P0300, P0301, P0302, P0303, P0304, ya ...2005 Honda Truck Odyssey V6-3.5L. Save Article. DTC P0300: Random Misfire and Any Combination of the Following: DTC P0301: No.1 Cylinder Misfire Detected DTC P0302: No.2 Cylinder Misfire Detected DTC P0303: No.3 Cylinder Misfire Detected DTC P0304: No.4 Cylinder Misfire Detected DTC P0305: No.5 Cylinder Misfire Detected …P0300 is a generic OBDII code that can occur with the Honda CR-Z. This code indicates that your car’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, the ...Treat P0304 with these codes like it has P0300. P0304 will often be accompanied by codes P0301, P0302, P0303, P0305, etc… These codes indicate a misfire in cylinders one, three, four, and five, respectively. Treat P0304 with these codes like it has P0300. Suspect an ignition-related cause or a vacuum leak.S. shawnmd Discussion starter. 8 posts · Joined 2010. #1 · May 10, 2017. So i have a 2009 Honda Pilot with 123,000 miles. it is throwing the p0305 and p0306 codes constantly, usually when cold. I have replaced plugs and wires and have switched the coils around with other cylinders. The misfires continue to be on cylinders 5 and 6.Sep 8, 2023 · Si tienes un auto Honda, es posible que alguna vez hayas visto el código P0300 en el tablero de instrumentos. Este código indica que hay un problema con el sistema de encendido del motor, que puede causar una pérdida de potencia, un aumento del consumo de combustible y una mayor emisión de gases contaminantes. The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are a common cause of multi-cylinder misfiring. If no leaks are found the next step is to replace the spark plugs. If the problem persists more tests need to be done to diagnose the problem, see 'Possible Causes'.The Check Engine light comes on with P0300 random/mutiple cyl. misfire detected along with P0301, P0302, P0303, P0304, P0305, P0306 and the VTM-4 light comes on. The engine has a miss while idling and driving until the transmission goes into 2nd gear. After 2nd gear the miss goes away. I have changed out the spark plugs, and …Nov 15, 2021 · Here’s my story: We have a 2007 Honda Pilot with a 3.5L V6 engine. About 2 months ago, it started running rough and threw the random misfire code (P0300) and misfire codes for cylinders 2 and 5. I replaced the spark plugs, PCV valve, and air filter first. Also tried some Meyer’s Mystery Oil in the gas tank. 2010 Honda Pilot p0300, P0301,P0302, P0303. A Few days ago I bought a 2010 Honda Pilot. To begin with the truck has about 178k miles. when i started the truck the first time it was smoking a lot. The first thing I did is change the spark plugs and coils since there was a misfire. ….

Treat P0304 with these codes like it has P0300. P0304 will often be accompanied by codes P0301, P0302, P0303, P0305, etc… These codes indicate a misfire in cylinders one, three, four, and five, respectively. Treat P0304 with these codes like it has P0300. Suspect an ignition-related cause or a vacuum leak.P0300 is a generic OBDII code that can occur with the Honda CR-V. This code indicates that your vehicle’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring).Replacement; DTC P0300, P0301, P0302, P0303, P0304, or P0172 AFFECTED VEHICLES Year Model Trim VIN Range 2016-18 Civic ALL with 1.5L Engine ALL - With DPSM Approval BACKGROUND Under certain circumstances, the vehicle may experience driveability issues, which may result in DTCs P0300 (random ... authorized Honda …P0300 is a generic OBDII code that can occur with the Honda Ridgeline. This code indicates that your truck's engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific …When a P0300 trouble code is triggered, it indicates that misfiring occurs in random or multiple cylinders. This happens when there is a deficient amount of fuel being burned within a cylinder. Most cars have between four and six cylinders, with each cylinder firing a spark plug continuously and smoothly. The spark plug fires a spark igniting ...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. If you find the P0300 code and …43 posts · Joined 2019. #1 · Aug 5, 2019. 2007 Pilot LX FWD, 203K miles. I have been receiving P0300 (generic misfire code) and P0301 - P0306 (misfire in cylinder 1 through cylinder 6) off and on for the last 35K miles. I've replaced the plugs with new ones from Bernardi Parts, so they're Honda spec plugs. I've been running good gas through ...P0300 is a generic OBDII code that can occur with the Honda CR-Z. This code indicates that your car’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, the ... P0300 honda, Some common causes of code P0300 could include the following-. Unmetered air entering the engine. Defective sparkplugs or sparkplug leads. Damaged, burnt, shorted, disconnected, or corroded wiring and/or connectors. Defective coil packs on applications where one coil feeds more than one sparkplug., A.Hmady said: Hi Honda community I have a Honda accord 3.5 v6 2008 with 80k miles. The symptoms. 1-a steady check engine which is P0300/P0304 sometimes and always P0305/P0306=misfire. 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 ..., 11 Oct 2022 ... Go to channel · 2006 Honda Odyssey 3.5 Random Misfire Case Study Part 1 : Diagnosing the P0300, P0301, P0302, Etc. GoTech•255K views · 18:45., I purchased a 2008 with 242k on the clock for my daughter's first ride. I knew it had some issues when I picked it up, but I have ironed out everything except for the P0300 random misfire for all cylinders. I am also getting P0301-P0306. I have replaced the PCV valve, plugs, and coil packs. I also removed the intake and cleaned the crud out ..., The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persists more tests needs to be done to diagnose problem, see "Possible Causes"., Hook up a live data scanner and look for anomalies. Engine faltering under load could be an air/fuel mixture problem. It is due for a valve adjustment, misfiring issue or not. 2002 Odyssey EX Fern (Granite) Green. Honda hood protector, stainless steel flex brake lines, Honda block heater, AC condenser screen, Zymol wax., A P0300 code in association with a check engine light may indicate problems with your vehicle’s ignition. It should be noted that a steadily-illuminated engine light indicates an …, The Honda Accord tops the list of most popular cars year after year. It’s not a luxury or sports car, so it might come as a surprise that the Honda Accord is also the most stolen c..., To put it simply, this code means that one of the cylinders in your vehicle misfired and that the misfire was detected and reported by your car’s computer. P0300 is vaguer than other misfire codes and doesn’t provide any insight on which one of the cylinders might have experienced the issue. If you get a P030­_ code with a number other ..., To diagnose the P0300 2020 Honda CR-V code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per hour., 20 Feb 2018 ... 2006 Honda Odyssey 3.5 Random Misfire Case Study Part 1 : Diagnosing the P0300, P0301, P0302, Etc. ... Honda pilot 3.5L Part 1 #timingbelt # ..., SUSCRIBETE AQUI....https://www.youtube.com/channel/UCidJ5DsrYj4xGojBfxKn3ZA?sub_confimation=1saludos el dia hoy les mostrarecomo solucionar Code P0300 Hondac..., 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. 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 ... , 10 Jun 2021 ... https://www.youtube.com/channel/UCidJ5DsrYj4xGojBfxKn3ZA?sub_confimation=1 saludos el dia hoy les mostrare como solucionar Code P0300 Honda ..., Sep 19, 2018 · P0300 is a generic OBDII code that can occur with the Honda Fit. This code indicates that your car’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). , P0302 in the Honda Accord is a common OBD II trouble code. It indicates that your car’s second cylinder has a misfire. P0302 is a real drivability concern and should be dealt with right away. If it’s bad enough to cause your Accord’s check engine light to come on, you shouldn’t drive your car at all. Repairing P0302 should be considered ..., Aug 15, 2023 · 10 posts · Joined 2023. #1 · Aug 15, 2023 (Edited) 2005 EX 4WD 187,700 miles with check engine light and random misfire codes P0300, P0301-P0306. Rough idle regardless of engine temperature. Runs great when driving under any kind of load. Great, smooth acceleration with plenty of power. , 621 Battlefield Blvd. Chesapeake, VA 23320. Hours and Directions. Contact our Honda dealer near Virginia Beach, VA, for auto sales and Honda service. Schedule a test-drive …, 20 Feb 2018 ... 2006 Honda Odyssey 3.5 Random Misfire Case Study Part 1 : Diagnosing the P0300, P0301, P0302, Etc. ... Honda pilot 3.5L Part 1 #timingbelt # ..., P0300 is a generic OBDII code that can occur with the Honda Accord. This code indicates that your car’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, the ..., The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are a common cause of multi-cylinder misfiring. If no leaks are found the next step is to replace the spark plugs. If the problem persists more tests need to be done to diagnose the problem, see 'Possible Causes'., What does the PO300 code mean on a Honda? The PO300 code is a generic powertrain code that indicates a random or multiple misfire in one or more cylinders of the engine. It specifically applies to Honda vehicles and can be triggered by various factors such as faulty spark plugs, ignition coils, fuel injectors, or even a clogged air filter., To increase customer confidence, American Honda is extending the powertrain warranty on the camshafts, rocker arm assemblies, and spark plugs from the original 5 years or 60,000 miles to 6 years with unlimited mileage from the original sale date. The ECU and TCM software is covered under the vehicle's emissions warranty beyond 6 years. Check iN for, I'm in the process of helping someone with their 2003 Honda Civic, 1.7L engine, 161k miles on the clock. Pulling the codes from the vehicle I got three specific codes: P0300, P0302, P0303. The codes themselves equate to generic misfire codes, with P0300 being the generic root, P030x (where "x" is the final number) equates to a specific cylinder., Sep 19, 2018 · P0300 is a generic OBDII code that can occur with the Honda Fit. This code indicates that your car’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). , One or more misfire codes (P0300-P0304) will be stored in your Honda Civic's PCM memory. P0300 Random Cylinder Misfire. P0301 Cylinder #1 Misfire. P0302 Cylinder #2 Misfire. P0303 Cylinder #3 Misfire. P0304 Cylinder #4 Misfire. Sometimes, even tho' the engine is suffering a bonafide misfire, no misfire codes are registered and no check engine ... , January 30, 2023 by Jason. P0300 is a generic OBDII code that can occur with the Honda Passport. This code indicates that your vehicle’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring)., It indicates that your Honda Pilot’s cylinder deactivation system has a performance issue. It is a very common code to see in Honda-made cars, vans, and trucks. ... It’s common to see VVT codes plus a misfire code (like P0300 or P0302) or a VVT code and an oil pressure code. In either situation, ignore the VVT code (for now) and focus on ..., Honda is spending $700 million to retool three of its Ohio plants to build electric vehicles as it aims to phase out gas engines by 2040. Honda said on Tuesday it is spending $700 ..., Our advice: P0300 (when misfiring occurs in random or multiple cylinders) is bad. A misfire is a very serious problem for an engine to have. If you see this fault code you should stop driving immediately, figure out what is causing the trouble code, and fix it. Driving with P0300 can destroy your engine, which can cost over $4000 to replace., So to trouble shoot this little event I moved the spark plug and coil pack to the Number 4 cyl. and swapped the number 4 spark plug and coil pack to the number 2 position. This did not correct the problem, It led to additional codes misfire in Cyl 3 P0303, P0300 Random - multiple misfire detected and P0352 Primary/Secondary circuit …, Details about car: Honda, Odyssey 2000 year model. 66,000 miles; automatic transmission; 2 wheel drive. Problem Summary. The car is misfiring on all 6 cylinders (P0301-P0306); the check engine light stays ON after the car has started; the TCS light comes on and stays on after 5 minutes of driving. Description of problem:, P0300 Sometimes PLEASE HELP. I have an 04 CRV with 220,000 miles and it misfires occasionally at idle. It gets worse after I drive it for 20 minutes or more and it is especially bad with the AC on while in drive. (Automatic) I have tried everything I can think of to diagnose it. I have done a compression test, the old starting fluid vacuum leak ...