AutoCodes – Nissan – P0444 2005 Nissan Pathfinder

P0444 2005 Nissan Pathfinder Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

Quick Answer

This system controls flow rate of fuel vapor from the Evaporative Emission System (EVAP) canister. Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Control, Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted, Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection. 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 2005 Nissan Pathfinder indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
Common causes
Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Control, Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted, Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection.
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.
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Code Popularity 4,674
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0444 2005 Nissan Pathfinder Description

This system controls flow rate of fuel vapor from the Evaporative Emission System (EVAP) canister. The opening of the vapor by-pass passage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP canister purge volume control solenoid valve repeats ON/OFF operation according to the signal sent from the Engine Control Module (ECM). The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is determined by considering various engine conditions. When the engine is operating, the flow rate of fuel vapor from the EVAP canister is regulated as the air flow changes.
The EVAP canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.
OBDII Code P0444 2005 Nissan Pathfinder - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open - AutoCodes.com
P0444 2005 Nissan Pathfinder Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

What are the Possible Causes of the DTC P0444 2005 Nissan Pathfinder?

  • Faulty Evaporative Emission (EVAP) Purge Solenoid Control
  • Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
  • Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection

How to Fix the DTC P0444 2005 Nissan Pathfinder?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0444 2005 Nissan Pathfinder 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 P0444 2005 Nissan Pathfinder code?

Need more information on how to fix the P0444 2005 Nissan Pathfinder code? Get Access to Factory Service Manuals

Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0444 2005 Nissan Pathfinder Code

1. What does the OBDII code P0444 mean on a 2005 Nissan Pathfinder?

The code P0444 indicates a problem with the EVAP Canister Purge Volume Control Solenoid Valve Circuit being open.

2. What are the common symptoms of a P0444 code in a 2005 Nissan Pathfinder?

Common symptoms include the check engine light illuminating, rough idling, poor fuel efficiency, and potential problems with passing emissions tests.

3. What are the possible causes of the P0444 code in a 2005 Nissan Pathfinder?

Possible causes include a faulty purge volume control solenoid valve, damaged wiring or connectors in the EVAP system, a malfunctioning PCM, or a vacuum leak in the system.

4. How can I diagnose the P0444 code in my 2005 Nissan Pathfinder?

Diagnosing the P0444 code typically involves using an OBDII scanner to retrieve the code, inspecting the EVAP system components for damage or leaks, and testing the purge volume control solenoid valve for proper function.

5. Can I continue driving my 2005 Nissan Pathfinder with a P0444 code?

While the vehicle may still be operable with a P0444 code, it's recommended to address the issue promptly to prevent potential damage to other components and ensure optimal performance.

6. How can I repair a P0444 code in a 2005 Nissan Pathfinder?

Repairing a P0444 code may involve replacing the purge volume control solenoid valve, repairing or replacing damaged wiring or connectors, clearing the code with an OBDII scanner, and performing a drive cycle to ensure the issue is resolved.

7. Are there any DIY tips for fixing a P0444 code in a 2005 Nissan Pathfinder?

DIY tips include checking for loose or damaged wiring, ensuring proper connections in the EVAP system, and consulting the vehicle's service manual for specific repair instructions.

8. Can a P0444 code in a 2005 Nissan Pathfinder cause other problems if left unresolved?

If left unresolved, a P0444 code may lead to decreased fuel efficiency, potential issues with emissions compliance, and possible damage to other components in the EVAP system.

9. How much does it typically cost to repair a P0444 code in a 2005 Nissan Pathfinder?

Repair costs for a P0444 code can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor, excluding diagnostic fees.

10. How long does it take to repair a P0444 code in a 2005 Nissan Pathfinder?

The repair time for a P0444 code can vary based on the exact cause of the issue and the expertise of the technician, but it may take anywhere from 1 to 3 hours to diagnose and fix the problem.

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