AutoCodes – Nissan – P0306 2007 Nissan Pathfinder

P0306 2007 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 2007 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 4,670

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 2007 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 2007 Nissan Pathfinder - Number 6 Cylinder Misfire Detected - AutoCodes.com — P0306 2007 Nissan Pathfinder Code - Number 6 Cylinder Misfire Detected

What does this mean?

What are the Possible Causes of the DTC P0306 2007 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 2007 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 2007 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 2007 Nissan Pathfinder Code

1. What does OBDII code P0306 mean on a 2007 Nissan Pathfinder?

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

2. What are the common symptoms of a P0306 code in a 2007 Nissan Pathfinder?

Symptoms include rough idling, poor acceleration, reduced fuel efficiency, engine hesitation, or the check engine light illuminating.

3. What causes a P0306 code in a 2007 Nissan Pathfinder?

Possible causes include a faulty spark plug, a damaged ignition coil, a clogged fuel injector, low compression in cylinder 6, or a vacuum leak near the cylinder.

4. Can a dirty or faulty fuel injector cause a P0306 code?

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

5. Is it safe to drive my 2007 Nissan Pathfinder with a P0306 code?

Driving with a P0306 code is not recommended as it can lead to further engine damage, reduced performance, and increased fuel consumption.

6. How can I fix a P0306 code on a 2007 Nissan Pathfinder?

Start by inspecting and replacing the spark plug and ignition coil for cylinder 6. If the issue persists, check the fuel injector, compression, and for vacuum leaks.

7. How do I locate cylinder 6 on my 2007 Nissan Pathfinder?

On the 2007 Nissan Pathfinder's V6 engine, cylinder 6 is typically located on the passenger side, rear of the engine in the firing order.

8. Can a vacuum leak cause a P0306 code in a 2007 Nissan Pathfinder?

Yes, a vacuum leak near cylinder 6 can disrupt the air-fuel mixture and cause a misfire.

9. Will replacing the spark plug always fix a P0306 code?

Not always. While a faulty spark plug is a common cause, other issues like ignition coil problems, fuel injector faults, or compression issues may also need to be addressed.

10. How much does it cost to repair a P0306 code on a 2007 Nissan Pathfinder?

The cost varies depending on the cause. Replacing a spark plug or ignition coil may cost $50-$200, while more extensive repairs like addressing compression issues could be much higher.