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P0306 2010 Nissan Pathfinder Code - Number 6 Cylinder Misfire Detected

Quick Answer

The diagnostic trouble code P0306 for a 2010 Nissan Pathfinder indicates that there is a misfire detected in the number 6 cylinder of the engine. Common causes include Faulty spark plug: A worn or damaged spark plug can cause a misfire in the cylinder, Failing ignition coil: A failing ignition coil can lead to a weak spark, resulting in a misfire, Clogged fuel injector: A clogged fuel injector can disrupt the fuel supply to the cylinder, causing a misfire. 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
P0306 2010 Nissan Pathfinder indicates Number 6 Cylinder Misfire Detected.
Common causes
Common causes include Faulty spark plug: A worn or damaged spark plug can cause a misfire in the cylinder, Failing ignition coil: A failing ignition coil can lead to a weak spark, resulting in a misfire, Clogged fuel injector: A clogged fuel injector can disrupt the fuel supply to the cylinder, causing a misfire.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P0306 2010 Nissan Pathfinder Description

The diagnostic trouble code P0306 for a 2010 Nissan Pathfinder indicates that there is a misfire detected in the number 6 cylinder of the engine. A misfire occurs when the fuel-air mixture in a cylinder fails to ignite properly, resulting in a lack of power and rough running. In this case, the issue specifically affects the number 6 cylinder, which is one of the cylinders in the engine that plays a crucial role in the combustion process.

OBDII Code P0306 2010 Nissan Pathfinder - Number 6 Cylinder Misfire Detected
P0306 2010 Nissan Pathfinder Code - Number 6 Cylinder Misfire Detected

Common Causes of P0306 2010 Nissan Pathfinder

  1. Faulty spark plug: A worn or damaged spark plug can cause a misfire in the cylinder.
  2. Failing ignition coil: A failing ignition coil can lead to a weak spark, resulting in a misfire.
  3. Clogged fuel injector: A clogged fuel injector can disrupt the fuel supply to the cylinder, causing a misfire.
  4. Vacuum leak: A vacuum leak can create an imbalance in the air-fuel mixture, leading to a misfire.
  5. Low compression: Low compression in the number 6 cylinder can result in a misfire due to incomplete combustion.

Symptoms of P0306 2010 Nissan Pathfinder

  1. Rough idle: The engine may run unevenly at idle, causing vibrations and shaking.
  2. Decreased power: The vehicle may have difficulty accelerating or may feel sluggish.
  3. Increased fuel consumption: A misfire can lead to inefficient combustion, resulting in higher fuel consumption.
  4. Engine misfire: The Check Engine Light may illuminate, indicating a misfire in the number 6 cylinder.

How to Fix P0306 2010 Nissan Pathfinder

  1. Diagnose the issue: Use a diagnostic scanner to retrieve the trouble code and perform a thorough inspection of the number 6 cylinder and related components.
  2. Replace spark plug: Inspect and replace the spark plug in the number 6 cylinder if it is found to be faulty.
  3. Test ignition coil: Test the ignition coil for proper operation and replace if necessary.
  4. Clean or replace fuel injector: Clean or replace the fuel injector in the number 6 cylinder to ensure proper fuel delivery.
  5. Check compression: Perform a compression test on the number 6 cylinder to check for low compression and address any issues found.

Cost to Fix P0306 2010 Nissan Pathfinder

The typical repair costs for addressing a misfire in the number 6 cylinder of a 2010 Nissan Pathfinder can vary depending on the specific cause of the issue and the cost of parts and labor in your area. On average, you can expect to pay anywhere from $100 to $300 for parts such as spark plugs, ignition coils, or fuel injectors. Labor costs can range from $100 to $300 or more, depending on the shop's hourly rate and the complexity of the repair.

What does this mean?

Tech Notes for P0306 2010 Nissan Pathfinder

The P0306 code means that cylinder #6 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 #6. If the problem persists more tests need to be done to diagnose the problem. See "Possible Causes" for the most common problems.

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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 P0306 2010 Nissan Pathfinder Code

1. What does the OBDII code P0306 mean on a 2010 Nissan Pathfinder?

P0306 indicates a misfire has been detected in cylinder number 6 of the engine.

2. What are the common symptoms of P0306 in a 2010 Nissan Pathfinder?

Symptoms include rough idling, engine hesitation, reduced performance, poor fuel economy, and the Check Engine Light turning on.

3. What causes a cylinder 6 misfire on a 2010 Nissan Pathfinder?

Common causes include a faulty spark plug, a bad ignition coil, a clogged fuel injector, low cylinder compression, or vacuum leaks near cylinder 6.

4. Can a dirty fuel injector cause P0306?

Yes, a clogged or malfunctioning fuel injector can disrupt the proper fuel delivery to cylinder 6, leading to a misfire.

5. How can I diagnose the cause of P0306?

Start by inspecting the spark plug, ignition coil, and wiring for damage. Perform a fuel injector test, check for vacuum leaks, and measure cylinder compression if needed.

6. Is it safe to drive with a P0306 code on my 2010 Nissan Pathfinder?

Driving with a P0306 code is not recommended, as it can cause engine damage or catalytic converter failure if the misfire persists.

7. How do I fix a P0306 code on my 2010 Nissan Pathfinder?

Repairs may involve replacing the spark plug or ignition coil for cylinder 6, cleaning or replacing the fuel injector, fixing vacuum leaks, or addressing cylinder compression issues.

8. Can a bad ignition coil trigger a P0306 code?

Yes, a failing ignition coil can cause weak or no spark in cylinder 6, leading to a misfire and triggering the P0306 code.

9. How much does it cost to repair a P0306 code on a 2010 Nissan Pathfinder?

Repair costs vary depending on the cause. Replacing a spark plug or ignition coil can cost $100–$300, while more complex issues like cylinder compression problems may cost significantly more.

10. Will clearing the P0306 code fix the problem?

Clearing the code will turn off the Check Engine Light temporarily, but the underlying issue causing the misfire must be addressed to prevent the code from returning.

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