P0444 Infiniti Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
Quick Answer
The P0444 code in an Infiniti indicates a problem with the EVAP (Evaporative Emission Control) canister purge volume control solenoid valve circuit. Common causes include Faulty Solenoid Valve: The EVAP canister purge volume control solenoid valve may be faulty and not functioning properly, Damaged Wiring: The wiring connecting the solenoid valve to the vehicle's electrical system may be damaged or disconnected, Poor Connection: A poor connection in the circuit, such as a loose or corroded connector, can cause the circuit to be open. 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 Infiniti indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
- Common causes
- Common causes include Faulty Solenoid Valve: The EVAP canister purge volume control solenoid valve may be faulty and not functioning properly, Damaged Wiring: The wiring connecting the solenoid valve to the vehicle's electrical system may be damaged or disconnected, Poor Connection: A poor connection in the circuit, such as a loose or corroded connector, can cause the circuit to be open.
- 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 Infiniti Description
The P0444 code in an Infiniti indicates a problem with the EVAP (Evaporative Emission Control) canister purge volume control solenoid valve circuit. This valve is responsible for controlling the flow of vapor from the fuel tank to the engine, allowing the engine to burn the vapor and reduce harmful emissions. When this circuit is open, it means that there is an issue with the electrical connection that controls the valve. This can lead to improper functioning of the EVAP system, affecting the vehicle's emissions, fuel efficiency, and overall performance.
Common Causes of P0444 Infiniti
- Faulty Solenoid Valve: The EVAP canister purge volume control solenoid valve may be faulty and not functioning properly.
- Damaged Wiring: The wiring connecting the solenoid valve to the vehicle's electrical system may be damaged or disconnected.
- Poor Connection: A poor connection in the circuit, such as a loose or corroded connector, can cause the circuit to be open.
- Vacuum Leak: A vacuum leak in the EVAP system can also trigger this code by affecting the flow of vapor.
Symptoms of P0444 Infiniti
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
- Rough Idle: The engine may experience a rough idle or hesitation during acceleration due to the improper flow of vapor.
- Decreased Fuel Efficiency: A decrease in fuel efficiency may be noticed as a result of the improper functioning of the EVAP system.
- Smell of Fuel: There may be a noticeable smell of fuel inside or around the vehicle due to the leaking vapor.
How to Fix P0444 Infiniti
- Diagnostic: The first step is to perform a diagnostic scan to confirm the P0444 code and identify the specific cause of the issue.
- Visual Inspection: Inspect the wiring and connectors for any visible damage or corrosion that may be affecting the circuit.
- Solenoid Valve Replacement: If the solenoid valve is faulty, it will need to be replaced with a new one to restore proper functionality.
- Repair Wiring: Repair or replace any damaged wiring in the circuit to ensure a secure connection.
- Clear Codes: After completing the repair, clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0444 Infiniti
The cost of repairing a P0444 code in an Infiniti can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of replacing the EVAP canister purge volume control solenoid valve and repairing any wiring issues can range from $150 to $300 for parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to obtain a detailed estimate from a trusted mechanic before proceeding with the repair.
Need more information about the P0444 Infiniti code?
Need more information on how to fix the P0444 Infiniti code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0444 Infiniti code diagnosed by a professional: Find a repair shop in your area
Information for Specific Infiniti Models
- P0444 2003 Infiniti G35 — EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
- P0444 2004 Infiniti G35 — EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
- P0444 2005 Infiniti G35 — EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
- P0444 2006 Infiniti G35 — EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
Frequently Asked Questions about P0444 Infiniti Code
What does the OBDII code P0444 mean on an Infiniti?
Code P0444 indicates an open circuit in the EVAP Canister Purge Volume Control Solenoid Valve, which disrupts the vehicle's ability to purge fuel vapors into the intake manifold.
What are the symptoms of the P0444 code on an Infiniti?
Common symptoms include the check engine light turning on, reduced fuel efficiency, difficulty starting the engine, and possibly a faint fuel smell.
What causes the P0444 code on an Infiniti?
Typical causes include a faulty purge control solenoid valve, damaged wiring or connectors in the circuit, or corrosion affecting electrical connections.
Can I drive my Infiniti with the P0444 code?
While you may be able to drive, it's not recommended as the issue can impact fuel vapor management, reduce efficiency, and potentially cause further damage over time.
How do I diagnose the P0444 code on an Infiniti?
Start by inspecting the purge control solenoid valve, wiring, and connectors for damage or corrosion. Use a multimeter to test for continuity in the circuit and verify solenoid operation.
How do I fix the P0444 code on my Infiniti?
Repairs typically involve replacing the faulty purge control solenoid valve, repairing or replacing damaged wiring, or cleaning corroded connectors.
How much does it cost to fix the P0444 code on an Infiniti?
The cost varies depending on the repair needed. Replacing the solenoid valve may cost $100–$300, while wiring repairs depend on the extent of damage.
Can a loose gas cap trigger the P0444 code on an Infiniti?
No, a loose gas cap generally triggers codes related to EVAP system leaks, not an open circuit in the purge solenoid valve.
Will clearing the P0444 code without repair fix the issue?
No, clearing the code will only temporarily remove the check engine light. The underlying issue must be repaired to prevent the code from returning.
Is the P0444 code related to emissions testing?
Yes, the P0444 code affects the EVAP system, which controls fuel vapor emissions. A vehicle with this code may fail an emissions test.
Discuss the causes and fixes for P0444 Infiniti OBDII Code
Code P0444 Infiniti 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.