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

Quick Answer

The P0444 diagnostic trouble code (DTC) for Nissan vehicles refers to an issue with the EVAP (Evaporative Emission Control) Canister Purge Volume Control Solenoid Valve circuit being open. Common causes include Faulty Purge Volume Control Solenoid Valve: The solenoid valve itself may be faulty, causing an open circuit, Wiring Issues: Damage or corrosion to the wiring harness connected to the solenoid valve can disrupt the electrical connection, ECM Malfunction: A malfunction in the vehicle's engine control module (ECM) can also trigger this code. 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 Nissan indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
Common causes
Common causes include Faulty Purge Volume Control Solenoid Valve: The solenoid valve itself may be faulty, causing an open circuit, Wiring Issues: Damage or corrosion to the wiring harness connected to the solenoid valve can disrupt the electrical connection, ECM Malfunction: A malfunction in the vehicle's engine control module (ECM) can also trigger this code.
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 07, 2024
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Code P0444 Nissan Description

The P0444 diagnostic trouble code (DTC) for Nissan vehicles refers to an issue with the EVAP (Evaporative Emission Control) Canister Purge Volume Control Solenoid Valve circuit being open. The EVAP system is responsible for capturing and storing fuel vapors to prevent them from being released into the atmosphere. The Canister Purge Volume Control Solenoid Valve is a crucial component of this system, as it regulates the flow of fuel vapor into the engine for combustion.

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

Common Causes of P0444 Nissan

  1. Faulty Purge Volume Control Solenoid Valve: The solenoid valve itself may be faulty, causing an open circuit.
  2. Wiring Issues: Damage or corrosion to the wiring harness connected to the solenoid valve can disrupt the electrical connection.
  3. ECM Malfunction: A malfunction in the vehicle's engine control module (ECM) can also trigger this code.
  4. Vacuum Leaks: Leaks in the vacuum lines connected to the EVAP system can lead to improper operation of the solenoid valve.
  5. Charcoal Canister Damage: Damage to the EVAP charcoal canister can also affect the operation of the purge volume control solenoid valve.

Symptoms of P0444 Nissan

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
  2. Rough Idling: A rough or unstable idle may occur due to improper fuel vapor flow into the engine.
  3. Decreased Fuel Efficiency: The vehicle may experience reduced fuel efficiency as a result of the EVAP system not functioning properly.
  4. Strong Fuel Odor: A strong smell of fuel vapors may be present, indicating a leak or issue with the EVAP system.
  5. Engine Stalling: In severe cases, the engine may stall or hesitate during acceleration due to improper fuel vapor regulation.

How to Fix P0444 Nissan

  1. Diagnose the Issue: Use a scan tool to verify the P0444 code and conduct a visual inspection of the EVAP system components.
  2. Replace Purge Volume Control Solenoid Valve: If the solenoid valve is faulty, it will need to be replaced with a new one.
  3. Repair Wiring: Address any damaged or corroded wiring in the circuit to ensure a proper electrical connection.
  4. Check Vacuum Lines: Inspect and repair any leaks in the vacuum lines connected to the EVAP system.
  5. 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 Nissan

The cost of repairing a P0444 code in a Nissan vehicle can vary depending on the specific model and year of the vehicle, as well as the location and labor rates of the auto repair shop. On average, replacing a purge volume control solenoid valve can cost between $100 to $200 for the part alone, with additional costs for labor and diagnostic time. Overall, the total repair cost for this issue may range from $200 to $400, but it's recommended to obtain a detailed estimate from a professional mechanic before proceeding with the repairs.

What does this mean?

Tech Notes for P0444 Nissan

There are factory service bulletins for the following Nissan models:

2008 Nissan Rogue
2009 Nissan Rogue
2010 Nissan Rogue
2008-2010 Nissan Rogue Service Bulletin OBDII Code P0444

2002 Nissan Altima
2003 Nissan Altima
2004 Nissan Altima
2005 Nissan Altima
2002-2005 Nissan Altima Service Bulletin OBDII Code P0444

2006 Nissan Altima
2006 Nissan Altima Service Bulletin OBDII Code P0444

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Information for Specific Nissan Models

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 Nissan Code

1. What are the common symptoms of OBDII code P0444 in a Nissan related to the EVAP Canister Purge Volume Control Solenoid Valve Circuit Open?

The common symptoms include the check engine light illuminating on the dashboard, decreased fuel efficiency, rough idling, and potential issues with the vehicle's emission control system.

2. What are the possible causes of the EVAP Canister Purge Volume Control Solenoid Valve Circuit Open fault code in a Nissan?

The code P0444 can be triggered by a faulty purge valve, damaged wiring or connectors in the purge valve circuit, a malfunctioning PCM (powertrain control module), or a vacuum leak in the EVAP system of the vehicle.

3. How can I diagnose the cause of OBDII code P0444 in my Nissan?

To diagnose the issue, you can use an OBDII scanner to retrieve the specific code and then inspect the purge valve, check the wiring and connectors for any damage, test the solenoid valve with a multimeter, and perform a smoke test to detect any leaks in the EVAP system.

4. Can I continue driving my Nissan with the EVAP Canister Purge Volume Control Solenoid Valve Circuit Open code?

While the vehicle may still be operational with this code, it is recommended to address the issue promptly to prevent potential damage to other components and ensure the vehicle meets emission standards.

5. Is it possible to repair the EVAP Canister Purge Volume Control Solenoid Valve Circuit Open issue in a Nissan myself?

Depending on your level of automotive expertise, you may be able to replace the purge valve or repair wiring issues yourself. However, for more complex diagnostics and repairs involving the PCM or EVAP system, it is advisable to seek assistance from a qualified mechanic.

6. How much does it typically cost to repair OBDII code P0444 in a Nissan?

The cost of repairing the EVAP Canister Purge Volume Control Solenoid Valve Circuit Open fault code can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Can a faulty gas cap cause the OBDII code P0444 in a Nissan?

While a loose or faulty gas cap is more commonly associated with the P0440 or P0455 codes, it can contribute to EVAP system issues that may trigger the P0444 code in some cases. It is recommended to ensure the gas cap is properly sealed before diagnosing further.

8. Will resetting the check engine light resolve the EVAP Canister Purge Volume Control Solenoid Valve Circuit Open code in a Nissan?

Resetting the check engine light may temporarily turn it off, but if the underlying issue causing the P0444 code is not addressed, the light is likely to reappear once the system detects the fault again.

9. What impact does the EVAP Canister Purge Volume Control Solenoid Valve Circuit Open code have on emissions testing for my Nissan?

Having the P0444 code present in the vehicle's system will likely cause it to fail emissions testing, as it indicates a malfunction in the EVAP system that is designed to control fuel vapors and reduce emissions.

10. How long can I safely drive my Nissan with the EVAP Canister Purge Volume Control Solenoid Valve Circuit Open code before getting it repaired?

It is recommended to address the issue as soon as possible to prevent potential damage to other components and ensure the vehicle's emission control system is functioning properly. Driving with the code for an extended period may lead to decreased fuel efficiency and increased emissions.

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