AutoCodes – Nissan – P0303 2012 Nissan Rogue

P0303 2012 Nissan Rogue Code - Number 3 Cylinder Misfire Detected

Quick Answer

When a misfire occurs, engine speed will fluctuate. Common causes include Faulty Spark Plug #3, Clogged or faulty Fuel Injector #3, Faulty Ignition Coil #3. 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: P0303 2012 Nissan Rogue indicates Number 3 Cylinder Misfire Detected.
Common causes: Common causes include Faulty Spark Plug #3, Clogged or faulty Fuel Injector #3, Faulty Ignition Coil #3.
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 6,136

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 Aug 08, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0303 2012 Nissan Rogue 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 #3 is misfiring.

OBDII Code P0303 2012 Nissan Rogue - Number 3 Cylinder Misfire Detected - AutoCodes.com — P0303 2012 Nissan Rogue Code - Number 3 Cylinder Misfire Detected

What does this mean?

What are the Possible Causes of the DTC P0303 2012 Nissan Rogue?

Faulty Spark Plug #3
Clogged or faulty Fuel Injector #3
Faulty Ignition Coil #3
Fuel Injector #3 harness is open or shorted
Fuel Injector #3 circuit poor electrical connection
Ignition Coil #3 harness is open or shorted
Ignition Coil #3 circuit poor electrical connection
Insufficient cylinder 3 compression
Incorrect fuel pressure
Intake air leak

How to Fix the DTC P0303 2012 Nissan Rogue?

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 P0303 code means that cylinder #3 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 #3. 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 P0303 2012 Nissan Rogue 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 P0303 2012 Nissan Rogue 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 P0303 2012 Nissan Rogue Code

1. What are the common symptoms of OBDII code P0303 on a 2012 Nissan Rogue?

- Common symptoms include engine misfiring, rough idling, loss of power, and potential hesitation during acceleration.

2. What are the possible causes of a number 3 cylinder misfire in a 2012 Nissan Rogue?

- Potential causes may include faulty spark plugs, a failing ignition coil on cylinder 3, a vacuum leak, fuel delivery issues, or a problem with the engine's compression.

3. How can I diagnose the cause of a number 3 cylinder misfire in my 2012 Nissan Rogue?

- Diagnosing the issue may involve conducting a thorough inspection of spark plugs, ignition coils, fuel injectors, and performing a compression test on cylinder 3 to pinpoint the exact cause.

4. Can driving with OBDII code P0303 in a 2012 Nissan Rogue cause further damage?

- Continuing to drive with a cylinder misfire can potentially lead to damage to the catalytic converter or other components, so it is advisable to address the issue promptly.

5. How can I repair OBDII code P0303 on a 2012 Nissan Rogue?

- Repairing the issue typically involves replacing faulty spark plugs, ignition coils, addressing vacuum leaks, checking fuel delivery, or repairing any compression-related problems in cylinder 3.

6. Is it safe to continue driving my 2012 Nissan Rogue with a number 3 cylinder misfire?

- It is not recommended to drive with a cylinder misfire as it can lead to further damage and potentially affect the overall performance of the vehicle.

7. Can a dirty or clogged fuel injector cause OBDII code P0303 in a 2012 Nissan Rogue?

- Yes, a dirty or clogged fuel injector can disrupt the proper fuel delivery to cylinder 3, leading to a misfire and triggering code P0303.

8. Will resetting the check engine light temporarily fix OBDII code P0303 in a 2012 Nissan Rogue?

- Resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing the number 3 cylinder misfire.

9. How much does it typically cost to repair OBDII code P0303 on a 2012 Nissan Rogue?

- The cost of repairing code P0303 can vary depending on the root cause, but it may involve expenses for parts and labor, with average costs ranging from $100 to $500 or more.

10. Can a DIY enthusiast fix OBDII code P0303 on a 2012 Nissan Rogue?

- Depending on the individual's mechanical skills and tools available, some DIY enthusiasts may be able to address common causes of the number 3 cylinder misfire, such as replacing spark plugs or ignition coils.