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P0021 2005 Nissan Maxima Code - Intake Valve Timing Control Performance Bank 2

- Code Popularity: 11,410 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By AutoCodes.com - Updated Sep 29, 2020
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|Code P0021 2005 Nissan Maxima Possible Causes

  • 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 do I Fix the Code P0021 2005 Nissan Maxima?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your Nissan have Safety Recalls? → Check here

|Code P0021 2005 Nissan Maxima Tech Notes

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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|What is the Cost to Diagnose the Code P0021 2005 Nissan Maxima?

Labor: 1.0

The cost of diagnosing the P0021 2005 Nissan Maxima code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|When is the Code P0021 2005 Nissan Maxima 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.

|What are Code P0021 2005 Nissan Maxima Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/Loss of power
  • Engine rough idle

|Code P0021 2005 Nissan Maxima Description

This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake valve. The Engine Control Module (ECM) receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing control solenoid valve depending on driving status. This makes it possible to control the shut/open timing of the intake valve to increase engine torque in low/mid speed range and output in the high-speed range.
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.

OBDII Code P0021 2005 Nissan Maxima - Intake Valve Timing Control Performance Bank 2 - AutoCodes.com
P0021 2005 Nissan Maxima Code - Intake Valve Timing Control Performance Bank 2

|Need More Information on the P0021 2005 Nissan Maxima Code?

Need more information on how to fix the P0021 2005 Nissan Maxima code? Get Access to Factory Service Manuals

|Need Help with the P0021 2005 Nissan Maxima Code?

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|Code P0021 2005 Nissan Maxima comments

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