AutoCodes – Nissan – P0304 2009 Nissan Rogue

P0304 2009 Nissan Rogue 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 2009 Nissan Rogue 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.

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Code Popularity 5,917

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 09, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0304 2009 Nissan Rogue Description

When a misfire occurs, engine speed will fluctuate. 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. The Diagnostic Trouble Code (DTC) will be set when the Engine Control Module monitors the crankshaft speed and has detected that engine cylinder #4 is misfiring.

OBDII Code P0304 2009 Nissan Rogue - Number 4 Cylinder Misfire Detected - AutoCodes.com — P0304 2009 Nissan Rogue Code - Number 4 Cylinder Misfire Detected

What does this mean?

What are the Possible Causes of the DTC P0304 2009 Nissan Rogue?

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 2009 Nissan Rogue?

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.

What does this mean?

Code 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" for the most common problems.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0304 2009 Nissan Rogue 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.

Need more information about the P0304 2009 Nissan Rogue code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0304 2009 Nissan Rogue Code

1. What are the common symptoms of OBDII code P0304 in a 2009 Nissan Rogue?

- Common symptoms include engine misfires, rough idling, loss of power, and potential engine vibration.

2. What are the possible causes of a number 4 cylinder misfire detected in a 2009 Nissan Rogue?

- The misfire could be caused by issues such as a faulty ignition coil, spark plug, fuel injector, vacuum leak, or low compression in the cylinder.

3. How can I diagnose the specific cause of the number 4 cylinder misfire in my 2009 Nissan Rogue?

- Use a scan tool to check for the P0304 code, perform a visual inspection for damaged parts, conduct a compression test, and check the ignition system components.

4. Can driving with a P0304 code in a 2009 Nissan Rogue cause further damage to the engine?

- Continuing to drive with a misfiring cylinder can potentially damage the catalytic converter and other engine components over time.

5. How can I repair a number 4 cylinder misfire in my 2009 Nissan Rogue?

- Repair options may include replacing the faulty ignition coil, spark plug, or fuel injector, addressing any vacuum leaks, or performing a carbon cleaning on the intake valves.

6. Is it safe to drive my 2009 Nissan Rogue with the OBDII code P0304 until I can get it repaired?

- It is not recommended to drive with a misfiring cylinder, as it can lead to further damage and decreased engine performance. It is best to address the issue promptly.

7. Will resetting the OBDII code P0304 in my 2009 Nissan Rogue make the issue go away?

- Resetting the code may temporarily turn off the check engine light, but it will not fix the underlying issue causing the number 4 cylinder misfire.

8. How much does it typically cost to repair a number 4 cylinder misfire in a 2009 Nissan Rogue?

- The cost of repairs can vary depending on the specific cause of the misfire, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can bad fuel quality or old fuel contribute to a number 4 cylinder misfire in a 2009 Nissan Rogue?

- Yes, poor fuel quality or stale fuel can impact combustion and potentially lead to misfires in one or more cylinders, including the number 4 cylinder.

10. Are there any preventive maintenance steps I can take to reduce the likelihood of experiencing a cylinder misfire in my 2009 Nissan Rogue?

- Regularly servicing and maintaining your vehicle, including changing spark plugs, inspecting ignition components, and using quality fuel, can help prevent cylinder misfires and other engine issues.