P0021 2004 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 2004 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 2004 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 2004 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 2004 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 2004 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 2004 Infiniti G35 Code
1. What are the common symptoms of OBDII code P0021 on a 2004 Infiniti G35?
The common symptoms of code P0021 on a 2004 Infiniti G35 include rough idling, engine stalling, decreased fuel efficiency, and lack of power.
2. What does the OBDII code P0021 Intake Valve Timing Control Performance Bank 2 mean?
Code P0021 indicates that there is a performance issue with the intake valve timing control on Bank 2 of the engine in a 2004 Infiniti G35.
3. What are the possible causes of OBDII code P0021 on a 2004 Infiniti G35?
Possible causes of code P0021 on a 2004 Infiniti G35 include a faulty intake valve timing control solenoid, dirty engine oil, engine oil viscosity issues, or a problem with the timing chain.
4. How can I diagnose the OBDII code P0021 on my 2004 Infiniti G35?
Diagnosing code P0021 involves using a scan tool to retrieve the code, checking the intake valve timing control solenoid, inspecting the engine oil quality and level, and examining the timing chain for any issues.
5. Can I continue driving my 2004 Infiniti G35 with OBDII code P0021?
It is not recommended to drive your vehicle with code P0021, as it can lead to further engine damage and performance issues. It's best to address the problem promptly.
6. How serious is OBDII code P0021 on a 2004 Infiniti G35?
Code P0021 should be taken seriously, as it can affect the engine's performance and potentially cause damage if left unresolved. It is important to address the underlying issue promptly.
7. How much does it typically cost to repair OBDII code P0021 on a 2004 Infiniti G35?
The cost to repair code P0021 on a 2004 Infiniti G35 can vary depending on the exact cause of the issue. It is recommended to consult a mechanic for an accurate diagnosis and cost estimate.
8. Can I reset the OBDII code P0021 on my 2004 Infiniti G35 without fixing the underlying issue?
Resetting the code without addressing the underlying problem will only temporarily clear the error code. The issue will likely resurface, so it is important to diagnose and repair the root cause.
9. Is it possible to prevent OBDII code P0021 from occurring on a 2004 Infiniti G35?
Regular maintenance, including timely oil changes and using the recommended engine oil, can help prevent issues like code P0021. It's also crucial to address any engine performance problems promptly.
10. Can a DIY enthusiast fix OBDII code P0021 on a 2004 Infiniti G35?
While some DIY enthusiasts may have the skills to address code P0021, it is a complex issue that may require specialized tools and expertise. It is recommended to consult a professional mechanic for proper diagnosis and repair.
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