P0021 2004 Infiniti I35 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 I35 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 I35 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 I35?
- 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 I35?
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 I35 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 I35 Code
1. What are the common symptoms of OBDII code P0021 on a 2004 Infiniti I35?
- Common symptoms of code P0021 include rough idling, reduced engine performance, engine misfires, and potentially stalling.
2. What does the OBDII code P0021 indicate in a 2004 Infiniti I35?
- OBDII code P0021 in a 2004 Infiniti I35 indicates an issue with the intake valve timing control performance on bank 2 of the engine.
3. What are the possible causes of OBDII code P0021 on a 2004 Infiniti I35?
- Possible causes of code P0021 can include a faulty intake valve timing control solenoid, oil flow issues to the control valve, incorrect oil viscosity, or a problem with the engine's timing chain.
4. How can I diagnose the cause of OBDII code P0021 on my 2004 Infiniti I35?
- Diagnosing code P0021 may involve checking the oil level and condition, inspecting the intake valve timing control solenoid, verifying oil flow to the control valve, and examining the engine's timing components.
5. Can I continue driving my 2004 Infiniti I35 with OBDII code P0021?
- It is not recommended to drive your vehicle with code P0021 as it can lead to further engine damage and potential safety hazards. Prompt diagnosis and repair are advised.
6. How can I repair OBDII code P0021 on my 2004 Infiniti I35?
- Repairing code P0021 may involve replacing the intake valve timing control solenoid, ensuring proper oil flow to the control valve, correcting any oil viscosity issues, or addressing timing chain problems.
7. Is it possible to reset OBDII code P0021 on a 2004 Infiniti I35 without fixing the underlying issue?
- Resetting the code without addressing the root cause is not recommended, as the issue will persist and could lead to more severe problems down the road.
8. Will OBDII code P0021 on a 2004 Infiniti I35 cause the check engine light to illuminate?
- Yes, code P0021 will trigger the check engine light to illuminate on your 2004 Infiniti I35 to alert you to the intake valve timing control performance issue.
9. Can a DIY enthusiast repair OBDII code P0021 on a 2004 Infiniti I35?
- Depending on the DIYer's skill level and access to tools, repairing code P0021 may be possible. However, it is recommended to consult a professional mechanic for accurate diagnosis and repair.
10. How much does it typically cost to fix OBDII code P0021 on a 2004 Infiniti I35?
- The cost of fixing code P0021 can vary depending on the specific cause of the issue and labor rates in your area. It's best to obtain quotes from local mechanics or repair shops for an accurate estimate.
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