P0444 2003 Infiniti G35 Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
Quick Answer
The P0444 code on a 2003 Infiniti G35 indicates a problem with the EVAP (Evaporative Emission Control) system, specifically with the Canister Purge Volume Control Solenoid Valve circuit being open. Common causes include Faulty Canister Purge Volume Control Solenoid Valve: The solenoid valve itself may be defective and in need of replacement, Wiring Issues: Damaged or corroded wiring in the circuit connecting the solenoid valve to the ECM can cause an open circuit, Blown Fuse: A blown fuse in the EVAP system circuit can prevent the Canister Purge Volume Control Solenoid Valve from receiving power. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P0444 2003 Infiniti G35 indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
- Common causes
- Common causes include Faulty Canister Purge Volume Control Solenoid Valve: The solenoid valve itself may be defective and in need of replacement, Wiring Issues: Damaged or corroded wiring in the circuit connecting the solenoid valve to the ECM can cause an open circuit, Blown Fuse: A blown fuse in the EVAP system circuit can prevent the Canister Purge Volume Control Solenoid Valve from receiving power.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0444 2003 Infiniti G35 Description
The P0444 code on a 2003 Infiniti G35 indicates a problem with the EVAP (Evaporative Emission Control) system, specifically with the Canister Purge Volume Control Solenoid Valve circuit being open. The EVAP system is responsible for capturing and storing fuel vapors to prevent them from escaping into the atmosphere. The Canister Purge Volume Control Solenoid Valve is a crucial component of this system, as it controls the flow of fuel vapor from the charcoal canister to the engine intake manifold for combustion.
Common Causes of P0444 2003 Infiniti G35
- Faulty Canister Purge Volume Control Solenoid Valve: The solenoid valve itself may be defective and in need of replacement.
- Wiring Issues: Damaged or corroded wiring in the circuit connecting the solenoid valve to the ECM can cause an open circuit.
- Blown Fuse: A blown fuse in the EVAP system circuit can prevent the Canister Purge Volume Control Solenoid Valve from receiving power.
- ECM Malfunction: A problem with the engine control module (ECM) can also lead to the P0444 code being triggered.
Symptoms of P0444 2003 Infiniti G35
- Check Engine Light: The most common symptom associated with the P0444 code is the illumination of the Check Engine Light on the vehicle's dashboard.
- Rough Idle: A malfunctioning Canister Purge Volume Control Solenoid Valve can cause the engine to idle roughly or inconsistently.
- Decreased Fuel Efficiency: Issues with the EVAP system can lead to decreased fuel efficiency as fuel vapors are not being properly recycled.
- Strong Fuel Odor: A noticeable fuel odor inside or outside the vehicle may indicate a problem with the EVAP system.
How to Fix P0444 2003 Infiniti G35
- Diagnose the Issue: Use a scan tool to retrieve the specific code and perform a thorough inspection of the EVAP system components to identify the root cause of the problem.
- Replace the Canister Purge Volume Control Solenoid Valve: If the valve is found to be faulty, it should be replaced with a new, OEM-quality part.
- Check Wiring and Connections: Inspect the wiring harness and connectors for any damage or corrosion, repairing or replacing as necessary.
- Test the Fuse: Verify that the fuse related to the EVAP system is intact and functioning correctly.
- Clear Codes and Test Drive: After completing the repairs, clear the diagnostic trouble codes (DTCs) with a scan tool and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0444 2003 Infiniti G35
The typical repair costs for addressing a P0444 code on a 2003 Infiniti G35 can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the price of a new Canister Purge Volume Control Solenoid Valve, potential wiring repairs, and diagnostic labor. It's important to note that actual repair costs can vary based on factors such as location, the expertise of the technician, and any additional components that may need to be replaced. It's recommended to consult with a trusted auto repair shop for a more accurate estimate based on your vehicle's specific needs.
When is the Code Detected?
Need more information about the P0444 2003 Infiniti G35 code?
Need more information on how to fix the P0444 2003 Infiniti G35 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0444 2003 Infiniti G35 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0444 2003 Infiniti G35 Code
1. What does the code P0444 mean on a 2003 Infiniti G35?
P0444 indicates an open circuit in the EVAP Canister Purge Volume Control Solenoid Valve, meaning the valve is not functioning as intended to control fuel vapors.
2. What are the symptoms of code P0444 for a 2003 Infiniti G35?
Common symptoms include an illuminated Check Engine Light, increased fuel odor around the vehicle, reduced fuel efficiency, and potential difficulty passing emissions tests.
3. What causes the P0444 code on a 2003 Infiniti G35?
Possible causes include a faulty purge volume control solenoid valve, damaged or disconnected wiring, corroded electrical connectors, or a malfunctioning PCM (Powertrain Control Module).
4. Can I drive my 2003 Infiniti G35 with a P0444 code?
While you can drive the car, it is not recommended for an extended period as it may lead to increased emissions, poor fuel efficiency, and potential damage to other components.
5. How can I fix the P0444 code on my 2003 Infiniti G35?
Start by inspecting the solenoid valve for damage, check the wiring and connectors for corrosion or disconnection, and replace the valve if necessary. If the issue persists, further diagnostics of the PCM may be needed.
6. How do I test the EVAP Canister Purge Volume Control Solenoid Valve?
You can test the solenoid valve using a multimeter to check for continuity and proper resistance. Consult the vehicle’s service manual for the correct specifications.
7. What is the cost to repair the P0444 code on a 2003 Infiniti G35?
Repair costs can vary, but replacing the purge solenoid valve typically costs between $100 and $300, including parts and labor.
8. Can a bad gas cap cause a P0444 code on a 2003 Infiniti G35?
No, a bad gas cap is unlikely to trigger a P0444 code. The issue is specific to the purge solenoid valve circuit and not related to the gas cap.
9. How do I prevent a P0444 code from occurring again?
Regularly inspect the EVAP system components, ensure wiring and connectors are secure and free of corrosion, and perform periodic maintenance as recommended by the manufacturer.
10. Will clearing the code with an OBDII scanner fix the P0444 issue?
Clearing the code may temporarily turn off the Check Engine Light, but it won’t fix the underlying problem. Proper diagnosis and repair are necessary to resolve the issue.
Discuss the causes and fixes for P0444 2003 Infiniti G35 OBDII Code
Code P0444 2003 Infiniti G35 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.