AutoCodesNissan – P0306 2008 Nissan Maxima

P0306 2008 Nissan Maxima 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 2008 Nissan Maxima 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 5,245
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 P0306 2008 Nissan Maxima 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 2008 Nissan Maxima - Number 6 Cylinder Misfire Detected - AutoCodes.com
P0306 2008 Nissan Maxima Code - Number 6 Cylinder Misfire Detected

What are the Possible Causes of the DTC P0306 2008 Nissan Maxima?

  • 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 2008 Nissan Maxima?

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 P0306 2008 Nissan Maxima 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 P0306 2008 Nissan Maxima 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 P0306 2008 Nissan Maxima Code

1. What are the common symptoms of OBDII code P0306 (Number 6 Cylinder Misfire Detected) on a 2008 Nissan Maxima?

- Common symptoms include rough idling, engine vibration, loss of power, decreased fuel efficiency, and potential engine stalling.

2. What are the possible causes of a P0306 code on a 2008 Nissan Maxima?

- Possible causes include a faulty ignition coil, spark plug, fuel injector, vacuum leak, low compression in the number 6 cylinder, or issues with the engine control module.

3. How can I diagnose the cause of a P0306 code on my 2008 Nissan Maxima?

- Diagnostic steps may include checking the spark plug and ignition coil for wear or damage, testing the fuel injector for proper function, inspecting for vacuum leaks, and performing a compression test on the number 6 cylinder.

4. Can driving with a P0306 code on a 2008 Nissan Maxima cause further damage?

- Driving with a misfire can potentially damage the catalytic converter over time and may lead to more severe engine issues if left unresolved for an extended period.

5. How can I repair a P0306 code on a 2008 Nissan Maxima?

- Repair options may include replacing the faulty ignition coil, spark plug, or fuel injector, fixing any vacuum leaks, addressing low compression in the cylinder, or resetting the engine control module.

6. Is it safe to continue driving my 2008 Nissan Maxima with a P0306 code?

- It is not recommended to drive your vehicle with a misfire as it can lead to further damage and compromise driving safety. It is best to address the issue promptly.

7. Can a dirty fuel injector cause a P0306 code on a 2008 Nissan Maxima?

- Yes, a dirty or clogged fuel injector can disrupt the proper fuel delivery to the number 6 cylinder, resulting in a misfire and triggering the P0306 code.

8. How long does it take to repair a P0306 code on a 2008 Nissan Maxima?

- The repair time can vary depending on the exact cause of the misfire. Simple fixes like replacing a spark plug may take less than an hour, while diagnosing and fixing more complex issues could take longer.

9. Will resetting the OBDII system clear a P0306 code on a 2008 Nissan Maxima?

- Resetting the system may temporarily clear the code, but if the underlying issue causing the misfire is not addressed, the code is likely to reappear after driving the vehicle again.

10. What is the typical cost to repair a P0306 code on a 2008 Nissan Maxima?

- The cost of repair can vary widely depending on the specific cause of the misfire and the parts and labor required. It's best to consult with a mechanic for an accurate estimate.

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