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P0302 2006 Infiniti G35 Code - Number 2 Cylinder Misfire Detected

Quick Answer

When the OBD-II code P0302 appears in a 2006 Infiniti G35, it signifies that a misfire has been detected in the number 2 cylinder of the engine. Common causes include Faulty spark plugs, Faulty ignition coils, Clogged or faulty fuel injectors. 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
P0302 2006 Infiniti G35 indicates Number 2 Cylinder Misfire Detected.
Common causes
Common causes include Faulty spark plugs, Faulty ignition coils, Clogged or faulty fuel injectors.
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 P0302 2006 Infiniti G35 Description

When the OBD-II code P0302 appears in a 2006 Infiniti G35, it signifies that a misfire has been detected in the number 2 cylinder of the engine. This misfire can lead to a variety of issues that affect the vehicle's performance, fuel efficiency, and emissions. When a cylinder misfires, it means that the air-fuel mixture in that cylinder did not ignite properly, causing a disruption in the combustion process. This can result in rough idling, hesitation or jerking while accelerating, decreased power and acceleration, increased fuel consumption, and potentially even engine stalling.

OBDII Code P0302 2006 Infiniti G35 - Number 2 Cylinder Misfire Detected
P0302 2006 Infiniti G35 Code - Number 2 Cylinder Misfire Detected

Common Causes of P0302 2006 Infiniti G35

  1. Faulty spark plugs
  2. Faulty ignition coils
  3. Clogged or faulty fuel injectors
  4. Vacuum leaks
  5. Low compression in the number 2 cylinder

Symptoms of P0302 2006 Infiniti G35

  1. Rough idling
  2. Hesitation or jerking while accelerating
  3. Decreased power and acceleration
  4. Increased fuel consumption
  5. Engine stalling

How to Fix P0302 2006 Infiniti G35

  1. Perform a thorough inspection of the ignition system, including spark plugs and ignition coils, and replace any faulty components.
  2. Conduct a fuel injector balance test to identify any clogged or malfunctioning fuel injectors and replace as necessary.
  3. Check for vacuum leaks and repair or replace any damaged hoses.
  4. Perform a compression test on the number 2 cylinder to determine if there are any internal engine issues causing the misfire.
  5. Clear the error code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0302 2006 Infiniti G35

The cost of repairing a P0302 code in a 2006 Infiniti G35 can vary depending on the specific cause of the misfire and the parts and labor required for the repair. On average, the cost of parts for this repair could range from $100 to $500, with labor costs adding an additional $100 to $300. However, as labor rates can vary between different auto repair shops, it is advisable to check with local mechanics for a more accurate estimate. Additionally, the cost may increase if any additional components need to be replaced or if further diagnostics are required.

What does this mean?

Tech Notes for P0302 2006 Infiniti G35

The P0302 code means that cylinder #2 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 #2. 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 P0302 2006 Infiniti G35 Code

1. What does OBDII code P0302 mean for a 2006 Infiniti G35?

- OBDII code P0302 indicates a misfire in the number 2 cylinder of the engine in a 2006 Infiniti G35.

2. What are common symptoms of a number 2 cylinder misfire in a 2006 Infiniti G35?

- Common symptoms of a number 2 cylinder misfire include rough idling, loss of power, engine vibrations, and potentially increased fuel consumption.

3. What are possible causes of a number 2 cylinder misfire in a 2006 Infiniti G35?

- Potential causes of a number 2 cylinder misfire include faulty spark plugs, ignition coils, fuel injectors, vacuum leaks, or issues with the engine's compression.

4. How can I diagnose the cause of a number 2 cylinder misfire in my 2006 Infiniti G35?

- Diagnosing the cause of the misfire may involve checking spark plugs, ignition coils, fuel injectors, vacuum lines, and performing a compression test to pinpoint the issue.

5. Can driving with a number 2 cylinder misfire in a 2006 Infiniti G35 cause further damage?

- Driving with a misfire can potentially lead to damage to the catalytic converter, oxygen sensors, or other engine components over time, so it is best to address the issue promptly.

6. How can I repair a number 2 cylinder misfire in my 2006 Infiniti G35?

- Repairing a number 2 cylinder misfire may involve replacing faulty spark plugs, ignition coils, fuel injectors, or addressing any vacuum leaks or compression issues as needed.

7. Is it safe to continue driving my 2006 Infiniti G35 with a number 2 cylinder misfire?

- While it may be possible to drive with a misfire for a short distance, it is not recommended as it can lead to further damage and potentially unsafe driving conditions.

8. How much does it typically cost to repair a number 2 cylinder misfire in a 2006 Infiniti G35?

- The cost of repairing a number 2 cylinder misfire can vary depending on the underlying cause and the parts and labor required, but it is advisable to budget for diagnostic costs and potential component replacements.

9. Can a DIY enthusiast fix a number 2 cylinder misfire in a 2006 Infiniti G35?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to address a number 2 cylinder misfire by replacing spark plugs, ignition coils, or other components, but complex issues may require professional assistance.

10. How often does a number 2 cylinder misfire occur in a 2006 Infiniti G35?

- Number 2 cylinder misfires can occur due to various reasons, and while they may not be common, they are a known issue that can affect the performance and reliability of the vehicle.

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