P0021 2006 Nissan Maxima Code - Intake Valve Timing Control Performance Bank 2
Quick Answer
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake valve. Common causes include Faulty Intake Valve Timing Control Solenoid Valve, Intake Valve Timing Control Solenoid Valve harness is open or shorted, Intake Valve Timing Control Solenoid Valve circuit poor electrical connection. 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 Nissan Maxima indicates Intake Valve Timing Control Performance Bank 2.
- Common causes
- Common causes include Faulty Intake Valve Timing Control Solenoid Valve, Intake Valve Timing Control Solenoid Valve harness is open or shorted, Intake Valve Timing Control Solenoid Valve circuit poor electrical connection.
- 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.
Code P0021 2006 Nissan Maxima Description
The intake valve timing control solenoid valve changes the oil amount and direction of flow through the intake valve timing control unit or stops oil flow. The longer pulse width advances the valve angle. The shorter pulse width retards the valve angle. When ON and OFF pulse widths become equal, the solenoid valve stops oil pressure flow to fix the intake valve angle at the control position.
What are the Possible Causes of the DTC P0021 2006 Nissan Maxima?
- Faulty Intake Valve Timing Control Solenoid Valve
- Intake Valve Timing Control Solenoid Valve harness is open or shorted
- Intake Valve Timing Control Solenoid Valve circuit poor electrical connection
- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty Crankshaft Position Sensor (POS)
How to Fix the DTC P0021 2006 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
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0021 2006 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.
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Frequently Asked Questions about P0021 2006 Nissan Maxima Code
1. What are the common symptoms of OBDII code P0021 on a 2006 Nissan Maxima?
- Common symptoms include rough idling, decreased fuel efficiency, loss of power, and illuminated Check Engine light.
2. What does the OBDII code P0021 "Intake Valve Timing Control Performance Bank 2" mean for a 2006 Nissan Maxima?
- This code indicates that there is a performance issue with the intake valve timing control on bank 2 of the engine.
3. What are the possible causes of OBDII code P0021 on a 2006 Nissan Maxima?
- Possible causes include a faulty intake valve timing control solenoid, oil flow issues, engine timing problems, or a malfunctioning camshaft position sensor.
4. Can driving with OBDII code P0021 on a 2006 Nissan Maxima cause further damage?
- Continuing to drive with this code may lead to engine damage, reduced performance, and potential catalytic converter issues.
5. How can I diagnose and repair OBDII code P0021 on my 2006 Nissan Maxima?
- Diagnosis typically involves checking the intake valve timing control solenoid, inspecting oil levels and quality, and testing the camshaft position sensor. Repairs may involve replacing faulty components and performing an engine timing adjustment.
6. Is it safe to continue driving my 2006 Nissan Maxima with the Check Engine light illuminated due to code P0021?
- It is not recommended to drive the vehicle for an extended period with the Check Engine light on, as it signifies an underlying issue that should be addressed promptly.
7. Are there any DIY repair tips for fixing OBDII code P0021 on a 2006 Nissan Maxima?
- DIY enthusiasts can start by checking and cleaning the intake valve timing control solenoid, ensuring proper oil levels and quality, and inspecting the camshaft position sensor for any visible issues.
8. How much does it typically cost to repair OBDII code P0021 on a 2006 Nissan Maxima at a professional auto repair shop?
- The cost of repairs for this code can vary depending on the exact cause, but it may range from $200 to $800, including parts and labor.
9. Can resetting the OBDII code P0021 on a 2006 Nissan Maxima make the issue go away temporarily?
- Resetting the code may temporarily turn off the Check Engine light, but it will not fix the underlying problem causing the code to trigger.
10. What preventive maintenance steps can I take to avoid OBDII code P0021 on my 2006 Nissan Maxima in the future?
- Regularly changing the engine oil and filter, following the manufacturer's recommended maintenance schedule, and addressing any engine performance issues promptly can help prevent this code from recurring.
Discuss the causes and fixes for P0021 2006 Nissan Maxima OBDII Code
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I have just replaced all timing chains, tensioners, and guides on my 06 maxima and I got the 0021 code. I then filtered the engine oil, which is new syntetic type, and cleaned the oil filter. The "service engine soon" light was off for a full day. the light has come back now and this time I will clean the oil, filter, and the oil pan to see if the light stays off.
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