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P0304 code español of Technology

4'th Cylinder. P0304 is a cylinder-specific .

P0138 heated oxygen sensor. open or short circuit condition. high fuel pressure or leaking injector. faulty heated oxygen sensor-bank 1 sensor 2. P0304 4 cylinder misfire detected. ignition system fault, fuel system fault. vacuum leak affecting one cylinder. engine mechanical condition". The owner of this car had a coil replaced some time ago.4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Ram's fourth cylinder has a misfire. Before you can even diagnose P0304 in your truck, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.So much has changed about the way people make calls. For example, you can’t even call your next door neighbor’s landline without using an area code, and you certainly can’t call mo...P0304 + Other Cylinder Misfire Codes. 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.The P0304 code means that cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 4. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes". There is a Factory Service Bulletins for All 2000 ...4’th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Accent’s fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder’s location. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the engine.4’th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Tundra’s fourth cylinder has a misfire. Before you can even diagnose P0304 in your truck, you need to find the fourth cylinder’s location. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the engine.4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your CX-5's fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Altima's fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.The solutions to the P0304 fault code will vary depending on the root cause of the problem. However, here are some of the steps your mechanic may take to fix the issue: Replacing faulty spark plugs or wires. Installing a new ignition coil. Cleaning or replacing a clogged fuel injector. Fixing vacuum leaks. Repairing any issues related to low ...We just bought a 2002 Camry with 72,000 miles 2 months ago. It now has 74,000 and while on vacation the CEL came on. I took it to a mechanic who got the code P-0304 off the computer. He swapped the number 4 ign. coil pack with the number 3 cylinder. The CEL light went off and I was able to drive the 300 miles home.4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your IS 300's fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.Symptoms of a Code P0304. There are a number of signs which can help you easily diagnose this code. A flickering check engine light. An engine starting trouble. Stalling. Engine idling is rough. Low power on uphill driving. Excessive fuel …4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your 6's fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.2 posts · Joined 2010. #1 · Jan 9, 2010. Hello, I have an 05 Colorado with 105,000 miles. Need help with code P0304 # 4 cyl misfire. So far have changed spark plugs put on new fuel and air filter. Rented OBDII scanner from autozone. Deleted all codes and as was pulling in to have inspected after driving for 70 plus miles code came back on P0304.4’th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your LeSabre’s fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder’s location. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the engine.P0304 + Other Cylinder Misfire Codes. 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.P0138 heated oxygen sensor. open or short circuit condition. high fuel pressure or leaking injector. faulty heated oxygen sensor-bank 1 sensor 2. P0304 4 cylinder misfire detected. ignition system fault, fuel system fault. vacuum leak affecting one cylinder. engine mechanical condition". The owner of this car had a coil replaced some time ago.All times are GMT -4. The time now is . 1997 - 2003 Ford F150 - P0171 and P0304 codes - I have a reg cab 4.6l f150 coding p0171 (bank 1 too lean) and p0304 (misfire on cylinder 4). Being the truck is backfiring at the bottom of gears (its a standard), and stuttering in the gear and up hills, I was thinking fuel pump or clogged fuel filter.P0304 + Other Cylinder Misfire Codes. 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.Paladin Discussion starter. 8 posts · Joined 2018. #1 · Mar 10, 2018. I have been getting intermittent code P0304 (cylinder 4 misfire). I looked up code and found 10 things that may be the cause. I have already replaced spark plugs and still happens. One thing listed is ignition coil pack.A P0304 diagnostic trouble code means the powertrain control module has detected a misfire on cylinder four. Engine misfire occurs when the engine combustion process is compromised in a given, multiple, or random cylinder. In the case of a P0304, there's a compromised combustion process on the no.4 cylinder. The car computer, also known as ...Nov 18, 2018 · 4’th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Altima’s fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder’s location. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the engine.Jun 14, 2020 · The P0304 code means that the cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 4. If the problem persists more tests needs to be done to diagnose the problem, see "Possible Causes" above. There is a Factory Service Bulletin to ...The P0304 code means that the cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 4. If the problem persists more tests needs to be done to diagnose problem, see "Possible Causes". Search for P0304 MINI Questions and Answers ...P0304 + Other Cylinder Misfire Codes. 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.P0304 + Other Cylinder Misfire Codes. 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.1. Engine Misfires. Besides the check engine light on the dash which is an understandable occurrence in this situation, there will be a problem with engine misfires when you have a P0304 Toyota code. Since as you know, this code means that cylinder 4 is misfiring.There are many situations where you can find yourself needing to look up a ZIP code. Maybe you’re trying to mail a letter but only have the recipient’s street address. Perhaps you’...P0304 + Other Cylinder Misfire Codes. 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.The P0304 code means that the cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 4. If the problem persists more tests needs to be done to diagnose problem, see "Possible Causes". ⚠ Check if your Subaru have Safety Recalls.Diversos factores pueden desencadenar en el código DTC P0304 Toyota en un coche. Puede haber varias causas, como: Fuga de aire de admisión. Buja de encendido #4 defectuosa. Bobina de encendido #4 defectuosa. Inyector de combustible #4 obstruido o defectuoso. Haz de cables de los inyectores de combustible #4 abierto o en cortocircuito.The P0304 code means that cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 4. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes". User Submitted Video.Code P0304 2002 Toyota Highlander Description. When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position sensor signal to vary, the Engine Control Module can determine that a misfire is occurring. P0304 2002 Toyota Highlander Code - Cylinder 4 Misfire Detected ...Tech Notes. The P0304 code means that cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 4. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes". This Factory Service Bulletin explains ...Los motivos por los cuales se puede establecer el código de falla P0304 OBDII son: Bajo nivel de combustible. Componentes del sistema de encendido del vehículo tales como bujías o, sus cables podrían estar defectuoso. Igualmente, la bobina puede que se encuentre defectuosa. Sensor de Oxígeno (O2) puede estar defectuoso.4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Silverado's fourth cylinder has a misfire. Before you can even diagnose P0304 in your truck, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the ...IKEA is a popular home decor and furniture retailer that offers affordable and stylish products. If you’re looking to shop at IKEA online, you might be wondering how to get the bes...P0304 + Other Cylinder Misfire Codes. 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.Soluciones posibles para el código P0304: Comprobar y reemplazar la bujía y el cable de bujía: Inspeccione la bujía y el cable de bujía para detectar daños o co rrosión. Si están desgastados o dañados, reemplácelos. Inspeccionar y reemplazar la bobina de encendido: Inspeccione la bobina de encendido para detectar daños o corros ión.Code P0304 misfire help. Hi, I have a 1997 Toyota 4 Runner, 4 cylinder, manual transmission, with 207k miles. About a month ago I got a code P0304 (misfire cylinder 4). I was experiencing rough idles, poor performance when accelerating, and my shifter knob was shaking about. So I replaced the spark plugs and the wire set.P0304 + Other Cylinder Misfire Codes. 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.Code P306 and P316 both indicate a misfire on cylinder number six. P300 is misfire on unknown cylinder. Car missed and started running very rough. I replace...I then changed out O2 sensors with new - still code P0304. That is when I continued to change out parts. Everything I changed out made the truck run better and better. But never got rid of the P0304 code. When replacing all the parts listed in email one didn't cure my problem I pulled the valve cover to look at the cam which was in good shape ...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code DODGE P0304 Saving Repa...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...4’th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Tahoe’s fourth cylinder has a misfire. Before you can even diagnose P0304 in your vehicle, you need to find the fourth cylinder’s location. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the engine.SilverSport said: Answers. 1) Best case: bad spark plug. Worst case: loss of compression due to internal damage. 2) The ETC light may /may not be connected to the misfire. 3) No effect from heavier tires. 4) Sub freezing weather should have no effect. 5) As long as CEL isn't flashing, continued driving is normally ok. 4'th Cylinder. P0304 is a cylinder-spin this video I describe some common problemsP0304 + Other Cylinder Misfire Codes. Treat P030

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Bad spark plugs - Code P0304 is typically caused by bad spark plugs. Newer Chevy models are built using long-lasting iridium spark plugs but the plugs can still go bad over time. If your vehicle is running with bad plugs, the cylinders won't get enough power to properly fire, leading to a P0304 code. Faulty spark plug wires - If your ...2004 Honda Civic EX 1.7 MTX 4 dr 170k miles. CEL came on about 2 months ago solid. I reset the codes, changed the plugs. The codes were p0300 p0301 p0302 p0303 p0304. The old plugs looked pretty clean no oil whatsoever, but gaps looked a bit big, so I got the expensive plugs. A few weeks ago the cel came on again, this time it blinked.El código de diagnóstico de problemas (DTC) P0304 en un Mazda se refiere a un fallo de encendido en el cilindro 4 del motor. Un fallo de encendido se define como la falta de combustión en un cilindro debido a la ausencia de una chispa, una medición incorrecta de combustible, baja compresión u otra causa. Cuando ocurre un fallo de encendido ...33 posts · Joined 2018. #1 · Nov 18, 2020. I keep getting a P0304 misfire code. I also sometimes get a flashing engine light and AWD-SH light stays on. I always get the 304, and not the other cylinders. It seems like when I replaced the plugs a couple months ago, it solved it, but now it is back. Replaced the coils last week, and for a couple ...Qué significa el código P0304. Este código de falla indica que se ha detectado un fallo de encendido en el cilindro número 4 provocado por una falta de chispa. Los cilindros se encargan de controlar las revoluciones por minuto a las que gira el cigüeñal del coche. En el caso de que alguno de los cilindros falle, estas revoluciones por ...Chasing down a P0304 code. I'm trying to help a neighbor with her '02 Astro. Details are listed in the profile; don't own one myself. The van sets a P0304 code after sustained (30 sec and up) runs above 2000rpm. Does it on the driveway and when moving. Seems to run smooth and strong with or without the code.4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your NV200's fourth cylinder has a misfire. Before you can even diagnose P0304 in your van, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.P. peterudl Discussion starter. 12 posts · Joined 2011. #1 · Oct 17, 2011. I'm getting a P0304 Code - Cylinder #4 Misfire code on my 2001 SEL. I've seen the various threads on this issue on how to trouble shoot it. However, I'd like to know, how serious is this problem?Code P0304 2008 Nissan Altima Sedan Description. When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position sensor signal to vary, the Engine Control Module can determine that a misfire is occurring.The Diagnostic Trouble Code (DTC) will be set when the Engine Control Module monitors the crankshaft speed and has detected that ...4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Land Cruiser's fourth cylinder has a misfire. Before you can even diagnose P0304 in your vehicle, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.P0304. For the past few weeks my 2014 Patriot with about 180,000 miles and the 2.4 engine started what felt like it was not shifting out of overdrive or maybe a missfire. I took it to a friend that has a trans shop. All he could find was the trans was 1 qt low and where were NO trouble codes! He said it looks like a missfire but with out any ...4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your xB's fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.The P0304 code means that the cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 4. If the problem persists more tests needs to be done to diagnose the problem, see "Possible Causes" above. There is a Factory Service Bulletin to ...Aug 26, 2018 · 4’th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Impala’s fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder’s location. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the engine.P0304 + Other Cylinder Misfire Codes. 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.Code P0304 2008 Nissan Altima Sedan Description. When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position sensor signal to vary, the Engine Control Module can determine that a misfire is occurring.The Diagnostic Trouble Code (DTC) will be set when the Engine Control Module monitors the crankshaft speed and has detected that ...4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Elantra's fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your 3's fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.The P0304 code means that the cylinder 4 is misCode P0340 may appear on some Ford vehicles. On a 2

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P0304 + Other Cylinder Misfire Codes. 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.Google has some buenas noticias for Spanish speakers who own Google Home smart speakers: You can now converse with the Google Assistant en español. Google has some buenas noticias ...From there, a shop will be able to give you an accurate estimate for repairs to fix your P0304 code. Other Possible Repairs for Code P0304. Once properly diagnosed, P0304 may require one or more of the following repairs to resolve the underlying issue. These prices are based on national averages and include parts and labor.The P0304 code means that cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 4. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes". User Submitted Video.What Does Jeep Grand Cherokee Code P0304 Mean? Jeep Grand Cherokee P0304 definition: Cylinder 4 Misfire Detected Issue Severity: SEVERE - Stop driving immediately. Repair Urgency: Fix this code immediately (same-day if possible) to avoid serious engine damage and dangerous driving conditions. Diagnosis: A multiple misfire can be caused by anything from faulty spark plugs to low engine ...P0304 + Other Cylinder Misfire Codes. 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.4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Zafira's fourth cylinder has a misfire. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.You may want to check the resistance of the plug wire. AC-Delco wires usually run about 430 ohms. If all that checks out, try switching out the coil pack from another cylinder, clear your code P0304. Start it up and see if your misfire moves to the cylinder where you placed the suspect coil pack. If the misfire still sets P0304 then check your ...Been working on my 2003 hyundai accent (221k miles) and have tried several things to clear up code P0304 Cylinder 4 misfire. - Spark plugs - Plug wires - Coils - Fuel injectors ... After replacing the fuel injectors and clearing the codes, the code still shows as pending on the scanner. The check engine light now only flashes when the car is at ...P0304 Code. I purchased a used 2016 Dodge Grand Caravan sxt with roughly 30 something K on it. I have since put about 30K miles on it and I am sitting right at 69500 miles. I drove round trip over two days from Baltimore, MD to Columbia, SC and when I returned to Baltimore, my van began to jerk and shutter and the check engine light flashed ...To diagnose the P0304 2005 Toyota Highlander 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.4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Element's fourth cylinder has a misfire. Before you can even diagnose P0304 in your vehicle, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine.BMW E46 CODE P0301 P0302 P0303 P0304 P0305 P0306 MISFIRE DETECTED FIXIf you have BMW and you have any of these code: Code P0301 P0302 P0303 P0304 P0305 P0306...Codes were p0304, p0300, p0308. I did change plugs and boots around 90,000 miles. I swapped around COP and plug from cylinder 4 with a different one and the code p0304 persisted. When I pull the plug it is damp with fuel. I'm at wits end and will probably bring to a shop as I'm at my mechanical ( tool limits).It's and OBD2 code and stands for: P0304: Misfire Detected → Cylinder 4. P0304 is certainly a cause for concern, and should be considered a threat to the drivability your 9-3. The nice thing about P0304 is that it's a cylinder specific trouble code, which makes diagnosing the problems simpler than P0300, which means that the cylinders are ...The P0304 code indicates a misfire in the fourth cylinder of your Toyota vehicle. To diagnose the issue, you can start by checking the spark plug and ignition coil for any signs of wear or damage. Additionally, it is recommended to inspect the fuel injector and compression in the affected cylinder. Proper diagnostic tools can also help identify ...El código P0304 significa que el módulo de control del motor ha detectado una falla de encendido en el cilindro n. ° 4 que requiere su atención. Los fallos de encendido en el …Save up to $100 off with Nomad discount codes. 22 verified Nomad coupons today. PCWorld’s coupon section is created with close supervision and involvement from the PCWorld deals te...Jun 14, 2020 · The P0304 code means that the cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 4. If the problem persists more tests needs to be done to diagnose the problem, see "Possible Causes" above. There is a Factory Service Bulletin to ...P0304 + Other Cylinder Misfire Codes. 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.P0304 code - Engine misfire problem appears to be solved. I replaced the #2/4/6 plugs w/new Champion plugs of the same number, and the misfire seems to be solved. I drove the vehicle to work today, and let it idle for over an hour to try to get the problem to re-occur and so far it hasn't. I will update the forum in a week or so to confirm.P0304 + Other Cylinder Misfire Codes. 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.P0354 is a generic OBD2 code that indicates that ignition coil "D" has an issue with the primary or secondary wiring circuits. If your Chevy Silverado has thrown this code, it may be accompanied by P0304.P0354 is a relatively straightforward diagnosis and is typically caused by a bad coil pack or wiring harness issue, although there can be caused by other factors.There is no voltage coming from the ECM to the injectors (the color/stripe wires). The ECM only grounds the circuit as it determines that the injector should spray. Do the flash test- hook up a test light from B+ to the lt bu/bk wire @ injector 4 (that connector disconnected). Crank the engine, light should flash. If not, manual says ECM is bad. 4’th Cylinder. P0304 is a cylinder-specific misf