AutoCodes – Nissan – P0302 2010 Nissan Pathfinder

P0302 2010 Nissan Pathfinder Code - Number 2 Cylinder Misfire Detected

Quick Answer

When a misfire occurs, engine speed will fluctuate. Common causes include Faulty Spark Plug #2, Clogged or faulty Fuel Injector #2, Faulty Ignition Coil #2. 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 2010 Nissan Pathfinder indicates Number 2 Cylinder Misfire Detected.
Common causes
Common causes include Faulty Spark Plug #2, Clogged or faulty Fuel Injector #2, Faulty Ignition Coil #2.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,796
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 29, 2024
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Code P0302 2010 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 #2 is misfiring.
OBDII Code P0302 2010 Nissan Pathfinder - Number 2 Cylinder Misfire Detected - AutoCodes.com
P0302 2010 Nissan Pathfinder Code - Number 2 Cylinder Misfire Detected

What are the Possible Causes of the DTC P0302 2010 Nissan Pathfinder?

  • Faulty Spark Plug #2
  • Clogged or faulty Fuel Injector #2
  • Faulty Ignition Coil #2
  • Fuel Injector #2 harness is open or shorted
  • Fuel Injector #2 circuit poor electrical connection
  • Ignition Coil #2 harness is open or shorted
  • Ignition Coil #2 circuit poor electrical connection
  • Insufficient cylinder 2 compression
  • Incorrect fuel pressure
  • Intake air leak

How to Fix the DTC P0302 2010 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0302 2010 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.

Need more information about the P0302 2010 Nissan Pathfinder 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 P0302 2010 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P0302 on a 2010 Nissan Pathfinder?

- Common symptoms include engine misfires, rough idling, loss of power, and potential increase in fuel consumption.

2. What does the OBDII code P0302 indicate specifically in a 2010 Nissan Pathfinder?

- This code specifically indicates a misfire detected in the number 2 cylinder of the engine.

3. What are the possible causes of a number 2 cylinder misfire in a 2010 Nissan Pathfinder?

- Possible causes include faulty spark plugs, ignition coil issues, vacuum leaks, fuel injector problems, or low compression in the cylinder.

4. How can I diagnose the cause of the number 2 cylinder misfire in my 2010 Nissan Pathfinder?

- Diagnostic steps may include checking the condition of spark plugs and ignition coils, conducting a compression test, inspecting for vacuum leaks, and scanning for other related trouble codes.

5. Can driving with OBDII code P0302 on a 2010 Nissan Pathfinder cause further damage?

- Continuing to drive with a cylinder misfire can potentially lead to damage to the catalytic converter, so it's advisable to address the issue promptly.

6. What are some DIY repair tips for resolving a number 2 cylinder misfire in a 2010 Nissan Pathfinder?

- DIY repair tips may include replacing spark plugs and ignition coils, checking and cleaning fuel injectors, ensuring proper fuel and air flow, and addressing vacuum leaks.

7. Is it necessary to reset the OBDII code after repairing a number 2 cylinder misfire in a 2010 Nissan Pathfinder?

- It is recommended to clear the code after making repairs to see if the issue has been resolved. If the problem persists, further diagnosis may be needed.

8. How much does it typically cost to repair an OBDII code P0302 on a 2010 Nissan Pathfinder at a mechanic or dealership?

- Repair costs can vary depending on the specific cause of the misfire, but they may range from $100 to $500 or more, including parts and labor.

9. Can a number 2 cylinder misfire in a 2010 Nissan Pathfinder be prevented in the future?

- Regular maintenance, such as changing spark plugs and ignition components at recommended intervals, can help prevent cylinder misfires in the future.

10. Why is it important to address OBDII code P0302 promptly in a 2010 Nissan Pathfinder?

- Promptly addressing a cylinder misfire can prevent more serious engine problems, improve fuel efficiency, and ensure optimal performance of the vehicle.

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