Engine-Codes.com
Engine-Codes – Infiniti – P0021 2002 Infiniti I35

P0021 2002 Infiniti I35 Code - Intake Valve Timing Control Performance Bank 2

Quick Answer

The P0021 code for a 2002 Infiniti I35 indicates an issue with the Intake Valve Timing Control Performance in Bank 2. Common causes include Faulty Intake Valve Timing Control Solenoid, Timing chain or belt issues, Camshaft or crankshaft position sensor problems. 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 2002 Infiniti I35 indicates Intake Valve Timing Control Performance Bank 2.
Common causes
Common causes include Faulty Intake Valve Timing Control Solenoid, Timing chain or belt issues, Camshaft or crankshaft position sensor problems.
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 06, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0021 2002 Infiniti I35 Description

The P0021 code for a 2002 Infiniti I35 indicates an issue with the Intake Valve Timing Control Performance in Bank 2. This means that there is a problem with the intake valve timing control system on the right side of the engine. 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.

OBDII Code P0021 2002 Infiniti I35 - Intake Valve Timing Control Performance Bank 2
P0021 2002 Infiniti I35 Code - Intake Valve Timing Control Performance Bank 2

Common Causes of P0021 2002 Infiniti I35

  1. Faulty Intake Valve Timing Control Solenoid
  2. Timing chain or belt issues
  3. Camshaft or crankshaft position sensor problems
  4. Engine control module (ECM) malfunction
  5. Wiring or connection issues

Symptoms of P0021 2002 Infiniti I35

  1. Lack of power
  2. Rough idling
  3. Misfires
  4. Decreased fuel efficiency
  5. Stalling

How to Fix P0021 2002 Infiniti I35

  1. Diagnose the issue by using an OBD-II scanner to confirm the P0021 code.
  2. Inspect the Intake Valve Timing Control Solenoid for any signs of damage or malfunction.
  3. Check the timing chain or belt, camshaft, and crankshaft sensors for proper operation.
  4. Test the engine control module (ECM) for any faults or errors.
  5. Replace any faulty components and reset the code to see if the issue is resolved.

Cost to Fix P0021 2002 Infiniti I35

The typical repair cost for addressing the P0021 code in a 2002 Infiniti I35 can range from $200 to $800, depending on the specific cause of the issue and the cost of parts and labor. It is important to consider that labor rates at auto repair shops can vary, so it is advisable to obtain quotes from multiple sources to ensure a fair price.

What does this mean?

Tech Notes for P0021 2002 Infiniti I35

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.









User Submitted Video

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.

Need more information about the P0021 2002 Infiniti I35 code?

Need more information on how to fix the P0021 2002 Infiniti I35 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0021 2002 Infiniti I35 code diagnosed by a professional: Find a repair shop in your area

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 2002 Infiniti I35 Code

1. What does the OBDII code P0021 on a 2002 Infiniti I35 mean?

The code P0021 indicates a problem with the Intake Valve Timing Control performance on Bank 2 of the engine.

2. What are common symptoms of a P0021 code in a 2002 Infiniti I35?

Common symptoms of a P0021 code may include rough idling, engine misfires, decreased fuel efficiency, and a noticeable decrease in engine performance.

3. What are the possible causes of a P0021 code in a 2002 Infiniti I35?

Potential causes of a P0021 code include a faulty Intake Valve Timing Control Solenoid, issues with the timing chain or belt, low engine oil levels, or problems with the engine control module.

4. How serious is a P0021 code on a 2002 Infiniti I35?

While a P0021 code may not cause immediate harm to the engine, it can lead to decreased engine performance and fuel efficiency if left unresolved. It is advisable to address the issue promptly.

5. How can I diagnose a P0021 code on my 2002 Infiniti I35?

Diagnosing a P0021 code typically involves using a scan tool to retrieve the code, checking the engine oil level, inspecting the Intake Valve Timing Control Solenoid, and examining the timing chain or belt for any issues.

6. Can I continue driving my 2002 Infiniti I35 with a P0021 code?

It is not recommended to drive your Infiniti I35 with a P0021 code for an extended period as it can lead to further engine complications. It is best to have the issue diagnosed and repaired as soon as possible.

7. How much does it cost to repair a P0021 code on a 2002 Infiniti I35?

The cost of repairing a P0021 code can vary depending on the exact cause of the issue. It is advisable to consult a mechanic for a proper diagnosis and cost estimate.

8. Can I reset the P0021 code in my 2002 Infiniti I35 by disconnecting the battery?

While disconnecting the battery may temporarily clear the code, it is not a permanent solution. The underlying issue causing the P0021 code needs to be addressed to prevent it from reoccurring.

9. Is the P0021 code a common problem in 2002 Infiniti I35 vehicles?

The P0021 code related to Intake Valve Timing Control performance can occur in Infiniti I35 vehicles, particularly as they age and components wear out. Regular maintenance can help prevent such issues.

10. How long does it take to repair a P0021 code on a 2002 Infiniti I35?

The time needed to repair a P0021 code can vary depending on the specific cause of the issue and the availability of parts. It is advisable to consult with a mechanic for a more accurate time estimate.

Discuss the causes and fixes for P0021 2002 Infiniti I35 OBDII Code

Submit a New Comment

Code P0021 2002 Infiniti I35 comments

No comments found for this page.