AutoCodes – Nissan – P0306 2011 Nissan Pathfinder

P0306 2011 Nissan Pathfinder Code - Number 6 Cylinder Misfire Detected

Quick Answer

When a misfire occurs, engine speed will fluctuate. Common causes include Faulty spark plug 6, Clogged or faulty fuel injector 6, Faulty ignition coil 6. 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 2011 Nissan Pathfinder indicates Number 6 Cylinder Misfire Detected.
Common causes: Common causes include Faulty spark plug 6, Clogged or faulty fuel injector 6, Faulty ignition coil 6.
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 2,893

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 Mar 29, 2024

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0306 2011 Nissan Pathfinder 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 #6 is misfiring.

OBDII Code P0306 2011 Nissan Pathfinder - Number 6 Cylinder Misfire Detected - AutoCodes.com — P0306 2011 Nissan Pathfinder Code - Number 6 Cylinder Misfire Detected

What does this mean?

What are the Possible Causes of the DTC P0306 2011 Nissan Pathfinder?

Faulty spark plug 6
Clogged or faulty fuel injector 6
Faulty ignition coil 6
Fuel injector 6 harness is open or shorted
Fuel injector 6 circuit poor electrical connection
Ignition coil 6 harness is open or shorted
Ignition coil 6 circuit poor electrical connection
Insufficient cylinder 6 compression
Incorrect fuel pressure
Intake air leak

How to Fix the DTC P0306 2011 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.

What does this mean?

Code Tech Notes

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0306 2011 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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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 2011 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P0306 in a 2011 Nissan Pathfinder?

The common symptoms of code P0306 include engine misfire, rough idling, loss of power, and increased fuel consumption.

2. What are the possible causes of a number 6 cylinder misfire in a 2011 Nissan Pathfinder?

Possible causes of a number 6 cylinder misfire can include faulty spark plugs, a malfunctioning ignition coil, a clogged fuel injector, vacuum leaks, or low compression.

3. How can I diagnose the cause of a number 6 cylinder misfire in my 2011 Nissan Pathfinder?

Diagnosing a number 6 cylinder misfire involves checking the spark plug, ignition coil, fuel injector, compression levels, and vacuum lines for any issues using diagnostic tools and inspection.

4. Can driving with OBDII code P0306 in a 2011 Nissan Pathfinder cause further damage?

Continuing to drive with code P0306 can lead to damage to the catalytic converter, oxygen sensor, or other engine components if left unresolved for an extended period.

5. How can I repair OBDII code P0306 in my 2011 Nissan Pathfinder?

To repair code P0306, you may need to replace the spark plugs, ignition coil, fuel injector, or address any vacuum leaks or compression issues as necessary.

6. Is it safe to continue driving my 2011 Nissan Pathfinder with a number 6 cylinder misfire?

It is not recommended to drive your vehicle with a cylinder misfire as it can lead to further damage and potential safety hazards. It's best to address the issue promptly.

7. Will resetting the OBDII code P0306 in my 2011 Nissan Pathfinder make the issue go away?

Resetting the code may temporarily turn off the check engine light, but the underlying issue causing the misfire will still persist and should be properly diagnosed and repaired.

8. How much does it typically cost to fix OBDII code P0306 in a 2011 Nissan Pathfinder?

The cost of fixing code P0306 can vary depending on the specific cause of the misfire, but it may range from a few hundred to over a thousand dollars for parts and labor.

9. Can a DIY enthusiast fix OBDII code P0306 in a 2011 Nissan Pathfinder?

Some aspects of diagnosing and repairing a number 6 cylinder misfire can be tackled by experienced DIY enthusiasts, but complex issues may require professional assistance.

10. How often should I check and replace spark plugs in my 2011 Nissan Pathfinder to prevent OBDII code P0306?

It is generally recommended to inspect and replace spark plugs every 30,000 to 50,000 miles to help prevent issues like cylinder misfires that can trigger code P0306.