P0021 2003 Infiniti G35 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 2003 Infiniti G35 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 2003 Infiniti G35 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 2003 Infiniti G35?
- 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 2003 Infiniti G35?
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 2003 Infiniti G35 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 2003 Infiniti G35 Code
1. What are the common symptoms of OBDII code P0021 on a 2003 Infiniti G35?
The common symptoms of code P0021 on a 2003 Infiniti G35 may include rough idling, decreased fuel efficiency, lack of power, and illuminated Check Engine Light.
2. What does OBDII code P0021 "Intake Valve Timing Control Performance Bank 2" mean for a 2003 Infiniti G35?
Code P0021 indicates that there is a performance issue with the intake valve timing control on bank 2 of the engine in a 2003 Infiniti G35.
3. What are the possible causes of OBDII code P0021 on a 2003 Infiniti G35?
Possible causes of code P0021 on a 2003 Infiniti G35 include a faulty intake valve timing control solenoid, issues with the camshaft position sensor, dirty engine oil, or a problem with the timing chain.
4. How can I diagnose OBDII code P0021 on a 2003 Infiniti G35?
Diagnosing code P0021 may involve checking the intake valve timing control solenoid, inspecting the camshaft position sensor, verifying oil levels and quality, and examining the timing chain for proper alignment.
5. What are the repair options for OBDII code P0021 on a 2003 Infiniti G35?
Repairing code P0021 may involve replacing the intake valve timing control solenoid, addressing any issues with the camshaft position sensor, performing an oil change, or repairing/replacing the timing chain if necessary.
6. Can driving with OBDII code P0021 on a 2003 Infiniti G35 cause further damage?
Continuing to drive with code P0021 on a 2003 Infiniti G35 can potentially cause damage to the engine over time, as it may lead to poor engine performance and inefficient combustion.
7. How urgent is it to address OBDII code P0021 on a 2003 Infiniti G35?
It is recommended to address code P0021 promptly on a 2003 Infiniti G35 to prevent further damage to the engine and ensure optimal performance and fuel efficiency.
8. Is it possible to clear OBDII code P0021 on a 2003 Infiniti G35 without repairing the issue?
Clearing code P0021 without addressing the underlying issue may temporarily turn off the Check Engine Light, but the problem will likely resurface until the root cause is fixed.
9. Can a DIY enthusiast repair OBDII code P0021 on a 2003 Infiniti G35?
Depending on the DIYer's skill level and access to tools, some may be able to address code P0021 by replacing the intake valve timing control solenoid or performing an oil change, but more complex repairs may require professional assistance.
10. How much does it typically cost to repair OBDII code P0021 on a 2003 Infiniti G35?
The cost of repairing code P0021 on a 2003 Infiniti G35 can vary based on the specific issue, parts needed, and labor rates, but it may range from a few hundred to over a thousand dollars at a repair shop.
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