P0304 2012 Nissan Pathfinder Code - Number 4 Cylinder Misfire Detected
Quick Answer
When a misfire occurs, engine speed will fluctuate. Common causes include Faulty Spark Plug #4, Clogged or faulty Fuel Injector #4, Faulty Ignition Coil #4. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0304 2012 Nissan Pathfinder indicates Number 4 Cylinder Misfire Detected.
- Common causes
- Common causes include Faulty Spark Plug #4, Clogged or faulty Fuel Injector #4, Faulty Ignition Coil #4.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0304 2012 Nissan Pathfinder Description
What are the Possible Causes of the DTC P0304 2012 Nissan Pathfinder?
- Faulty Spark Plug #4
- Clogged or faulty Fuel Injector #4
- Faulty Ignition Coil #4
- Fuel Injector #4 harness is open or shorted
- Fuel Injector #4 circuit poor electrical connection
- Ignition Coil #4 harness is open or shorted
- Ignition Coil #4 circuit poor electrical connection
- Insufficient cylinder 4 compression
- Incorrect fuel pressure
- Intake air leak
How to Fix the DTC P0304 2012 Nissan Pathfinder?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0304 2012 Nissan Pathfinder code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0304 2012 Nissan Pathfinder Code
1. What are the common symptoms of OBDII code P0304 (Number 4 Cylinder Misfire Detected) on a 2012 Nissan Pathfinder?
- Common symptoms include rough idling, loss of power, engine vibration, and potential hesitation during acceleration.
2. What are the possible causes of OBDII code P0304 on a 2012 Nissan Pathfinder?
- The code P0304 can be triggered by issues such as a faulty spark plug, ignition coil, fuel injector, vacuum leak, low compression in cylinder 4, or a problem with the engine control module.
3. How can I diagnose the cause of the misfire indicated by code P0304 on my 2012 Nissan Pathfinder?
- Diagnosis typically involves checking spark plugs, ignition coils, fuel injectors, compression levels, vacuum leaks, and the engine control module with appropriate diagnostic tools.
4. Can driving with OBDII code P0304 on a 2012 Nissan Pathfinder cause further damage?
- Continuing to drive with a misfire can potentially lead to damage to the catalytic converter, oxygen sensors, or other engine components, so it's best to address the issue promptly.
5. What are some repair tips for fixing OBDII code P0304 on a 2012 Nissan Pathfinder?
- Start by inspecting and replacing the spark plugs, ignition coil, and fuel injector for cylinder 4. Additionally, check for vacuum leaks and perform a compression test on cylinder 4.
6. Is it safe to continue driving my 2012 Nissan Pathfinder with a misfire indicated by code P0304?
- While it may be possible to drive short distances with a misfire, prolonged driving can cause damage to other components. It's advisable to address the issue as soon as possible.
7. Can a dirty or clogged fuel injector cause OBDII code P0304 on a 2012 Nissan Pathfinder?
- Yes, a dirty or clogged fuel injector for cylinder 4 can disrupt the air-fuel mixture and lead to a misfire, triggering the P0304 trouble code.
8. Does the weather or environmental conditions affect the likelihood of code P0304 occurring in a 2012 Nissan Pathfinder?
- Extreme weather conditions, such as very cold temperatures, can sometimes exacerbate existing issues that may trigger a misfire, so it's essential to maintain the vehicle properly.
9. What should I do if I clear OBDII code P0304 on my 2012 Nissan Pathfinder, but it returns?
- If the code returns after clearing it, it indicates that the underlying issue causing the misfire is still present. You should perform a thorough diagnosis to identify and address the problem.
10. Are there any recalls or technical service bulletins related to OBDII code P0304 on a 2012 Nissan Pathfinder?
- It's advisable to check with Nissan or consult technical service bulletins to see if there are any known issues or solutions related to the P0304 trouble code on your specific vehicle model.
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