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Engine-Codes – Nissan – P0021 2007 Nissan Maxima

P0021 2007 Nissan Maxima Code - Intake Valve Timing Control Performance Bank 2

Quick Answer

The P0021 code for a 2007 Nissan Maxima indicates a problem with the Intake Valve Timing Control Performance on Bank 2 of the engine. Common causes include Faulty Intake Valve Timing Control Solenoid, Dirty or clogged oil passages, Timing chain or belt issues. 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
P0021 2007 Nissan Maxima indicates Intake Valve Timing Control Performance Bank 2.
Common causes
Common causes include Faulty Intake Valve Timing Control Solenoid, Dirty or clogged oil passages, Timing chain or belt issues.
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 Aug 30, 2024
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Code P0021 2007 Nissan Maxima Description

The P0021 code for a 2007 Nissan Maxima indicates a problem with the Intake Valve Timing Control Performance on Bank 2 of the engine. This means that there is a discrepancy between the expected position of the intake valve timing control and the actual position. The intake valve timing control system is responsible for adjusting the timing of the opening and closing of the intake valves to optimize engine performance and fuel efficiency. When this system is not operating correctly, it can lead to poor engine performance, decreased fuel efficiency, and increased emissions.

OBDII Code P0021 2007 Nissan Maxima - Intake Valve Timing Control Performance Bank 2
P0021 2007 Nissan Maxima Code - Intake Valve Timing Control Performance Bank 2

Common Causes of P0021 2007 Nissan Maxima

  1. Faulty Intake Valve Timing Control Solenoid
  2. Dirty or clogged oil passages
  3. Timing chain or belt issues
  4. Electrical or wiring issues
  5. Engine oil quality or level problems

Symptoms of P0021 2007 Nissan Maxima

  1. Reduced engine performance or power
  2. Rough idling or stalling
  3. Poor fuel economy
  4. Engine misfires
  5. Illumination of the check engine light

How to Fix P0021 2007 Nissan Maxima

  1. Perform a thorough inspection of the intake valve timing control system to identify the root cause of the issue.
  2. Check and clean oil passages to ensure proper lubrication and operation.
  3. Replace the Intake Valve Timing Control Solenoid if it is found to be faulty.
  4. Inspect and potentially replace the timing chain or belt if necessary.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0021 2007 Nissan Maxima

The cost of repairing the Intake Valve Timing Control Performance issue on a 2007 Nissan Maxima can vary depending on the specific cause of the problem. On average, the repair cost could range from $200 to $600, including parts and labor. It's important to note that labor rates at auto repair shops can vary, so it's recommended to get a specific estimate from a trusted mechanic before proceeding with the repair.

What does this mean?

Tech Notes for P0021 2007 Nissan Maxima

Since the Intake valve timing control solenoid valve uses oil flow to control timing, dirty oil can cause the valve to stuck open or close. Before replacing the valve, change the engine oil and filter and reset the engine code. If the code comes back you can remove the Intake valve timing control solenoid and clean it with brake cleaner.









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When is the Code Detected?

When there is a gap between angle of target and phase-control angle degree, the valve will stop working and the ECM will trigger the P0021 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 P0021 2007 Nissan Maxima Code

1. What are the common symptoms of OBDII code P0021 on a 2007 Nissan Maxima?

When the code P0021 appears on your 2007 Nissan Maxima, you may experience symptoms such as rough idling, decreased fuel efficiency, poor acceleration, and potential engine misfires.

2. What does the OBDII code P0021 "Intake Valve Timing Control Performance Bank 2" mean on a 2007 Nissan Maxima?

The code P0021 indicates that there is an issue with the intake valve timing control on Bank 2 of the engine, which can affect the performance and efficiency of the vehicle.

3. What are the possible causes of OBDII code P0021 on a 2007 Nissan Maxima?

Common causes of code P0021 on a 2007 Nissan Maxima include a faulty intake valve timing control solenoid, engine oil flow issues, damaged timing chain or belt, or a malfunctioning camshaft position sensor.

4. How can I diagnose the OBDII code P0021 on my 2007 Nissan Maxima?

To diagnose code P0021, you can start by checking the engine oil level and condition, inspecting the intake valve timing control solenoid, examining the timing chain or belt, and testing the camshaft position sensor for proper operation.

5. Is it safe to continue driving with OBDII code P0021 on a 2007 Nissan Maxima?

It is not recommended to drive your 2007 Nissan Maxima with the code P0021 present, as it can lead to further damage to the engine and potentially more costly repairs if left unresolved.

6. Can I clear the OBDII code P0021 on my 2007 Nissan Maxima and see if it comes back?

While you can clear the code temporarily, it is advised to diagnose and address the underlying issue causing code P0021 on your 2007 Nissan Maxima to prevent future problems.

7. How much does it typically cost to repair OBDII code P0021 on a 2007 Nissan Maxima?

The cost of repairing code P0021 on a 2007 Nissan Maxima can vary depending on the exact cause of the issue, but it may range from a couple of hundred dollars for simpler fixes to over a thousand dollars for more complex repairs.

8. Can a DIY enthusiast fix OBDII code P0021 on a 2007 Nissan Maxima?

Some aspects of addressing code P0021, such as checking engine oil levels and inspecting components, can be done by a knowledgeable DIY enthusiast. However, more involved repairs may require professional expertise.

9. How urgent is it to address OBDII code P0021 on a 2007 Nissan Maxima?

It is recommended to address code P0021 on a 2007 Nissan Maxima as soon as possible to prevent potential engine damage and ensure the vehicle runs smoothly and efficiently.

10. Will fixing OBDII code P0021 improve the performance and fuel efficiency of my 2007 Nissan Maxima?

Yes, resolving code P0021 on your 2007 Nissan Maxima can lead to improved engine performance, smoother operation, better fuel efficiency, and overall enhanced driving experience.

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