P0021 2003 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 2003 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 2003 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 2003 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 2003 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
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0021 2003 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.
Need more information about the P0021 2003 Infiniti I35 code?
Need more information on how to fix the P0021 2003 Infiniti I35 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0021 2003 Infiniti I35 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0021 2003 Infiniti I35 Code
1. What are the common symptoms of OBDII code P0021 on a 2003 Infiniti I35?
- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and a loss of power while driving.
2. What causes the OBDII code P0021 to appear on a 2003 Infiniti I35?
- The code P0021 is typically triggered by a faulty intake valve timing control solenoid, a malfunctioning variable valve timing (VVT) system, or issues with the engine's timing chain.
3. How can I diagnose the cause of OBDII code P0021 on my 2003 Infiniti I35?
- Diagnosing this code may involve checking the intake valve timing control solenoid, inspecting the VVT system, and examining the timing chain for any signs of wear or damage.
4. Can driving with OBDII code P0021 on a 2003 Infiniti I35 cause further damage to the engine?
- Continuing to drive with this code may lead to potential engine damage, reduced performance, and increased fuel consumption. It's recommended to address the issue promptly.
5. What are some repair tips for fixing OBDII code P0021 on a 2003 Infiniti I35?
- Repair options may include replacing the intake valve timing control solenoid, repairing or replacing the VVT system components, or addressing any issues with the timing chain.
6. Is it safe to continue driving my 2003 Infiniti I35 with the OBDII code P0021 without immediate repair?
- It is not recommended to drive the vehicle with this code present, as it can lead to further engine issues and potentially costly repairs down the line.
7. How much does it typically cost to repair OBDII code P0021 on a 2003 Infiniti I35?
- The cost of repairing this code can vary depending on the exact cause of the issue and the labor rates in your area. It's advisable to consult with a mechanic for an accurate estimate.
8. Can resetting the OBDII code P0021 on a 2003 Infiniti I35 temporarily fix the issue?
- Resetting the code may temporarily clear the check engine light, but if the underlying issue is not addressed, the code is likely to reappear after some driving cycles.
9. Are there any preventive maintenance steps I can take to avoid OBDII code P0021 on my 2003 Infiniti I35 in the future?
- Regularly servicing your vehicle, following the manufacturer's recommended maintenance schedule, and using high-quality engine oil can help prevent issues that may trigger this code.
10. How long does it typically take to repair OBDII code P0021 on a 2003 Infiniti I35?
- The repair time can vary depending on the specific cause of the code and the extent of the damage. It's best to consult with a mechanic for a more accurate timeframe.
Discuss the causes and fixes for P0021 2003 Infiniti I35 OBDII Code
Code P0021 2003 Infiniti I35 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
