P0021 Infiniti 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 Infiniti 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 Infiniti 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 Infiniti?
- 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 Infiniti?
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 Infiniti 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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Information for Specific Infiniti Models
- P0021 2003 Infiniti G35 — Intake Valve Timing Control Performance Bank 2
- P0021 2004 Infiniti G35 — Intake Valve Timing Control Performance Bank 2
- P0021 2005 Infiniti G35 — Intake Valve Timing Control Performance Bank 2
- P0021 2006 Infiniti G35 — Intake Valve Timing Control Performance Bank 2
- P0021 2002 Infiniti I35 — Intake Valve Timing Control Performance Bank 2
- P0021 2003 Infiniti I35 — Intake Valve Timing Control Performance Bank 2
- P0021 2004 Infiniti I35 — Intake Valve Timing Control Performance Bank 2
Frequently Asked Questions about P0021 Infiniti Code
1. What are common symptoms of OBDII code P0021 in an Infiniti related to intake valve timing control performance on Bank 2?
- Common symptoms include engine misfires, rough idling, decreased fuel efficiency, and potential stalling.
2. What are the possible causes of the P0021 code on an Infiniti, indicating issues with intake valve timing control on Bank 2?
- Possible causes include a faulty intake valve timing control solenoid, issues with the camshaft position sensor, engine oil flow problems, or a timing chain/belt issue.
3. How can I diagnose the OBDII code P0021 in my Infiniti indicating intake valve timing control performance problems on Bank 2?
- Diagnosis typically involves inspecting the intake valve timing control solenoid, checking the camshaft position sensor, verifying proper engine oil levels and flow, and assessing the timing chain/belt condition.
4. Can driving with the P0021 code for intake valve timing control issues on Bank 2 in an Infiniti cause further damage?
- Continuing to drive with this code may lead to engine performance issues, potential damage to engine components, and reduced fuel efficiency over time.
5. How can I repair the intake valve timing control performance problem on Bank 2 in my Infiniti when experiencing the P0021 code?
- Repair options may include replacing the intake valve timing control solenoid, fixing issues with the camshaft position sensor, ensuring proper engine oil flow, or addressing any timing chain/belt malfunctions.
6. Will resetting the OBDII code P0021 related to intake valve timing control on Bank 2 in my Infiniti make the issue go away?
- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem with the intake valve timing control performance on Bank 2.
7. Can a DIY enthusiast repair the intake valve timing control performance issue on Bank 2 causing the P0021 code in an Infiniti?
- While some repairs may be possible for experienced DIYers, diagnosing and fixing complex issues related to intake valve timing control is best left to professional mechanics with the necessary tools and expertise.
8. How much does it typically cost to repair the intake valve timing control performance problem on Bank 2 in an Infiniti triggering the P0021 code?
- The cost of repairs can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
9. Are there any preventive maintenance measures I can take to avoid encountering the P0021 code regarding intake valve timing control on Bank 2 in my Infiniti?
- Regularly scheduled maintenance, timely oil changes, and addressing any engine performance issues promptly can help prevent issues leading to the P0021 code.
10. Will driving my Infiniti with the P0021 code for intake valve timing control issues on Bank 2 affect vehicle safety?
- While the immediate safety impact may be minimal, continued driving with this issue can lead to engine performance problems, reduced reliability, and potential safety risks if left unresolved.
Discuss the causes and fixes for P0021 Infiniti OBDII Code
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I got the p0021 code on my 2005 G35X. It turned out to be the cam position sensor. It was $70 and not hard to replace. The sensor is located on the back of the engine on the drivers side for the P0021 code, for P0011 it is the passengers side. It is easier to take off the air intake than it is to reach around behind the engine from the passenger side, although I have done it both ways. The symptoms were only the code, the car would not pass emissions.
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I changed my bank1and bank 2in my g35 2003 with codes 0035,0011,0021 and it still giving me problems. It actually starts up in on try but while driving it's giving me the same stalls. What else would be the problem?? Tommy
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You only wrote that you change Bank 1 and Bank 2, but what part exactly? Valves or solenoids? have you change the engine oil lately?
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Hello I have an 2005 Infinity G35 and it started to have the Check Engine Soon light that came on, I have a cheaper scan tool and it stated P0025 Camshaft Postion Sensor Bank 2 Malfunction, So I replaced the Cam Sensor at the back of the Engine block. Ran the car for awhile and thought everything was great, then it threw the P0021 code by itself no other codes and this time it stated Cam position actuator Bank 2 over advanced I cleared the code and the code returns.Is it the VVT solenoid Valve possibly. I pulled the Solenoid and looked it over pretty good and it seemed to my eyes not to be clogged with bad Oil deposits. The oil is fresh and a new filter as well. Anyone have any thoughts? Ever since this code is present it is very, very tough to start the car, it will eventually start after about 6 or 7 15 second cranks of the key. After it starts the engine runs fine, no rough idle or anything, it has plenty or get up and go still. Any Thoughts?
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More than likely the problem is the Valve Timing Control Solenoid Valve. I have remove may valves and I have never been able to see the carbon built up and sometimes is the electrical part that fails.
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I ordered the solenoid valve and should have it next week. I was able to apply power to the valve and it does move, im just not sure if the movement is enough as this is my first attempt at this issue. Can you tell me if the movement should be greater than an eighth of an inch? It appears that with rhe key on the valve pushes outward and returns inward with no power applied. Im just trying to understand this problem, thank you for the responce.
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Started with p0021 then a couple days later p0011 as well. Has crappy power and acceleration. Changed the oil, still crappy power. Would the power and accel loss be due to limp mode. Is that common with these codes and the timing. Can you clean the solenoids. Its has had poor power and accel since i got it just wasnt as bad until the codes showed up.
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Hello Kevin. What model and year is your Infiniti? Have you tried clearing the codes? how long it takes to comeback?
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