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P0444 2007 Nissan Pathfinder Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

Quick Answer

The P0444 diagnostic trouble code (DTC) for a 2007 Nissan Pathfinder refers to an issue with the EVAP (Evaporative Emission Control) system, specifically the Canister Purge Volume Control Solenoid Valve circuit being open. Common causes include Faulty Canister Purge Volume Control Solenoid Valve: The valve itself may be defective or stuck in the open position, causing the circuit to remain open, Wiring Issues: Damage to the wiring harness or connectors connected to the valve can lead to an open circuit, ECM (Engine Control Module) Malfunction: A malfunctioning ECM can also trigger the P0444 code by not sending the correct signals to the valve. 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 2007 Nissan Pathfinder indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
Common causes
Common causes include Faulty Canister Purge Volume Control Solenoid Valve: The valve itself may be defective or stuck in the open position, causing the circuit to remain open, Wiring Issues: Damage to the wiring harness or connectors connected to the valve can lead to an open circuit, ECM (Engine Control Module) Malfunction: A malfunctioning ECM can also trigger the P0444 code by not sending the correct signals to the valve.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P0444 2007 Nissan Pathfinder Description

The P0444 diagnostic trouble code (DTC) for a 2007 Nissan Pathfinder refers to an issue with the EVAP (Evaporative Emission Control) system, specifically the Canister Purge Volume Control Solenoid Valve circuit being open. The EVAP system is crucial for controlling the release of fuel vapor from the vehicle's fuel tank into the atmosphere, reducing harmful emissions. The Canister Purge Volume Control Solenoid Valve plays a key role in this system by regulating the flow of vapor from the charcoal canister to the engine intake manifold for combustion.

OBDII Code P0444 2007 Nissan Pathfinder - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
P0444 2007 Nissan Pathfinder Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

Common Causes of P0444 2007 Nissan Pathfinder

  1. Faulty Canister Purge Volume Control Solenoid Valve: The valve itself may be defective or stuck in the open position, causing the circuit to remain open.
  2. Wiring Issues: Damage to the wiring harness or connectors connected to the valve can lead to an open circuit.
  3. ECM (Engine Control Module) Malfunction: A malfunctioning ECM can also trigger the P0444 code by not sending the correct signals to the valve.
  4. Vacuum Leaks: Any leaks in the vacuum lines connected to the EVAP system can disrupt its operation and trigger the code.
  5. Charcoal Canister Contamination: Contamination of the charcoal canister with debris or fuel residue can also affect the operation of the EVAP system.

Symptoms of P0444 2007 Nissan Pathfinder

  1. 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.
  2. Rough Idle: A malfunctioning Canister Purge Volume Control Solenoid Valve can lead to a rough idle or stalling when the vehicle is at a standstill.
  3. Poor Fuel Economy: A faulty EVAP system can cause increased fuel consumption due to improper fuel vapor management.
  4. Failed Emissions Test: If the EVAP system is not functioning correctly, it may result in the vehicle failing emissions tests due to increased emissions.

How to Fix P0444 2007 Nissan Pathfinder

  1. Diagnose the Issue: Use a scan tool to read the DTC and perform further diagnostics to pinpoint the exact cause of the open circuit.
  2. Inspect Wiring and Connectors: Check the wiring harness and connectors for any signs of damage, corrosion, or loose connections.
  3. Test Canister Purge Volume Control Solenoid Valve: Test the valve for proper operation and replace it if necessary.
  4. Clear DTC: After repairing the issue, clear the DTC with a scan tool and test drive the vehicle to ensure the code does not return.
  5. Perform EVAP System Test: After the repair, perform an EVAP system test to verify that the system is functioning correctly and there are no leaks.

Cost to Fix P0444 2007 Nissan Pathfinder

The cost of repairing a P0444 code on a 2007 Nissan Pathfinder can vary depending on the specific cause of the issue and the labor rates in your area. In general, the cost of parts for replacing a Canister Purge Volume Control Solenoid Valve can range from $50 to $200, depending on the brand and quality of the part. Labor costs at an auto repair shop can range from $80 to $150 per hour, and the total repair cost may range from $150 to $400 or more. It is advisable to get a detailed quote from a trusted mechanic or repair shop to get an accurate estimate based on your vehicle's specific needs.

When is the Code Detected?

An excessively low voltage signal is sent to ECM through the valve

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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 2007 Nissan Pathfinder Code

1. What is the OBDII code P0444 on a 2007 Nissan Pathfinder?

The OBDII code P0444 in a 2007 Nissan Pathfinder specifically refers to the EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.

2. What are common symptoms of the P0444 code in a 2007 Nissan Pathfinder?

Common symptoms of the P0444 code in a 2007 Nissan Pathfinder may include rough idle, decreased fuel efficiency, and the illumination of the check engine light.

3. What causes the P0444 code to trigger in a 2007 Nissan Pathfinder?

The P0444 code in a 2007 Nissan Pathfinder is often triggered by a faulty EVAP canister purge volume control solenoid valve, damaged wiring in the circuit, or a loose connection.

4. How do I diagnose the P0444 code in a 2007 Nissan Pathfinder?

To diagnose the P0444 code in a 2007 Nissan Pathfinder, you can use an OBDII scanner to retrieve the trouble code and then visually inspect the wiring and connections related to the EVAP canister purge volume control solenoid valve.

5. Can I still drive my 2007 Nissan Pathfinder with the P0444 code?

It is generally safe to drive your 2007 Nissan Pathfinder with the P0444 code, but it is recommended to address the issue promptly to prevent potential damage and ensure optimal vehicle performance.

6. How do I repair the P0444 code in a 2007 Nissan Pathfinder?

Repairing the P0444 code in a 2007 Nissan Pathfinder typically involves replacing the faulty EVAP canister purge volume control solenoid valve, repairing any damaged wiring or connections, and clearing the trouble code with an OBDII scanner.

7. Can I reset the P0444 code in a 2007 Nissan Pathfinder without fixing the issue?

While you can temporarily clear the P0444 code in a 2007 Nissan Pathfinder by resetting the check engine light, it is crucial to address the underlying problem to prevent further issues and ensure your vehicle's proper functioning.

8. How much does it cost to fix the P0444 code in a 2007 Nissan Pathfinder?

The cost to fix the P0444 code in a 2007 Nissan Pathfinder can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Are there any DIY tips for troubleshooting the P0444 code in a 2007 Nissan Pathfinder?

DIY tips for troubleshooting the P0444 code in a 2007 Nissan Pathfinder include checking for loose connections, inspecting the wiring for damage, and ensuring the EVAP canister purge volume control solenoid valve is functioning properly.

10. How often does the P0444 code occur in a 2007 Nissan Pathfinder?

The occurrence of the P0444 code in a 2007 Nissan Pathfinder can vary based on factors such as vehicle maintenance, driving habits, and environmental conditions, but it is not an uncommon issue in older vehicles.

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