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Engine-Codes – Infiniti – P0021 2006 Infiniti G35

P0021 2006 Infiniti G35 Code - Intake Valve Timing Control Performance Bank 2

Quick Answer

The P0021 code on a 2006 Infiniti G35 indicates a problem with the Intake Valve Timing Control Performance on Bank 2. Common causes include Malfunctioning IVTC solenoid, Faulty camshaft position sensor, 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 2006 Infiniti G35 indicates Intake Valve Timing Control Performance Bank 2.
Common causes
Common causes include Malfunctioning IVTC solenoid, Faulty camshaft position sensor, 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 Sep 12, 2024
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Code P0021 2006 Infiniti G35 Description

The P0021 code on a 2006 Infiniti G35 indicates a problem with the Intake Valve Timing Control Performance on Bank 2. This means that there is an issue with the timing of the intake valves on the second bank of cylinders in the engine. The Intake Valve Timing Control (IVTC) system is responsible for adjusting the timing of the intake valves to optimize engine performance and fuel efficiency. When this system malfunctions, it can lead to poor engine performance, reduced fuel efficiency, and potential engine damage if not addressed promptly.

OBDII Code P0021 2006 Infiniti G35 - Intake Valve Timing Control Performance Bank 2
P0021 2006 Infiniti G35 Code - Intake Valve Timing Control Performance Bank 2

Common Causes of P0021 2006 Infiniti G35

  1. Malfunctioning IVTC solenoid
  2. Faulty camshaft position sensor
  3. Timing chain or belt issues
  4. Dirty or clogged oil passages
  5. Low engine oil level

Symptoms of P0021 2006 Infiniti G35

  1. Engine misfires
  2. Rough idling
  3. Decreased fuel efficiency
  4. Loss of power
  5. Illuminated check engine light

How to Fix P0021 2006 Infiniti G35

  1. Perform a visual inspection of the IVTC solenoid and camshaft position sensor for any signs of damage.
  2. Test the IVTC solenoid and camshaft position sensor using a multimeter to check for continuity and proper operation.
  3. Inspect the timing chain or belt for any wear or damage and replace if necessary.
  4. Clean or replace any dirty or clogged oil passages that may be affecting the IVTC system.
  5. Reset the ECM and clear the code to see if the issue has been resolved.

Cost to Fix P0021 2006 Infiniti G35

The cost of repairing a P0021 code on a 2006 Infiniti G35 can vary depending on the specific cause of the issue. On average, the cost of parts for this repair can range from $200 to $500, with labor costs adding an additional $150 to $300. This brings the total cost of the repair to approximately $350 to $800. However, it is important to note that labor rates can vary significantly between different auto repair shops, so it is advisable to check local rates for a more accurate estimate.

What does this mean?

Tech Notes for P0021 2006 Infiniti G35

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 2006 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0021 on a 2006 Infiniti G35?

- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and lack of power during acceleration.

2. What does the OBDII code P0021 "Intake Valve Timing Control Performance Bank 2" mean for a 2006 Infiniti G35?

- This code indicates a problem with the intake valve timing control on bank 2 of the engine, which can affect engine performance and efficiency.

3. What are the possible causes of OBDII code P0021 on a 2006 Infiniti G35?

- Possible causes include a faulty intake valve timing control solenoid, issues with the timing chain or belt, low engine oil level, or a malfunctioning variable valve timing system.

4. How can I diagnose the cause of OBDII code P0021 on my 2006 Infiniti G35?

- Diagnosing the issue may involve checking the oil level and quality, inspecting the timing components, testing the intake valve timing control solenoid, and scanning for other related trouble codes.

5. Can driving with OBDII code P0021 on a 2006 Infiniti G35 cause further damage?

- Continuing to drive with this code may lead to reduced engine performance, potential engine damage, and decreased fuel efficiency over time.

6. How can I repair OBDII code P0021 on my 2006 Infiniti G35?

- Repair options may include replacing the intake valve timing control solenoid, addressing issues with the timing components, ensuring proper engine oil levels, and resetting the trouble code.

7. Is it safe to clear the OBDII code P0021 on a 2006 Infiniti G35 without fixing the underlying issue?

- It is not recommended to clear the code without addressing the root cause, as the problem may persist and potentially lead to more severe engine issues.

8. How much does it typically cost to repair OBDII code P0021 on a 2006 Infiniti G35?

- The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can a DIY enthusiast fix OBDII code P0021 on a 2006 Infiniti G35?

- Depending on the level of expertise, DIY enthusiasts may be able to address some aspects of the repair, such as replacing the intake valve timing control solenoid, but more complex issues may require professional assistance.

10. How often does OBDII code P0021 occur in a 2006 Infiniti G35?

- The occurrence of this code can vary based on factors such as maintenance history, driving conditions, and the overall health of the vehicle, but it is relatively common in vehicles with variable valve timing systems.

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