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Engine-Codes – Nissan – P0444 2005 Nissan Altima Sedan

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

Quick Answer

The P0444 code on a 2005 Nissan Altima Sedan indicates a problem 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, Wiring or connector issues in the circuit, Corrosion or damage to the EVAP system components. 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 Altima Sedan indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
Common causes
Common causes include Faulty Canister Purge Volume Control Solenoid Valve, Wiring or connector issues in the circuit, Corrosion or damage to the EVAP system components.
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 Aug 19, 2024
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Code P0444 2005 Nissan Altima Sedan Description

The P0444 code on a 2005 Nissan Altima Sedan indicates a problem with the EVAP (Evaporative Emission Control) system, specifically 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 controls the flow of fuel vapor from the charcoal canister to the engine intake manifold for combustion.

OBDII Code P0444 2005 Nissan Altima Sedan - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
P0444 2005 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

Common Causes of P0444 2005 Nissan Altima Sedan

  1. Faulty Canister Purge Volume Control Solenoid Valve.
  2. Wiring or connector issues in the circuit.
  3. Corrosion or damage to the EVAP system components.
  4. Vacuum leaks in the system.
  5. ECM (Engine Control Module) failure.

Symptoms of P0444 2005 Nissan Altima Sedan

  1. Check Engine Light illuminated on the dashboard.
  2. Rough idling or stalling of the engine.
  3. Reduced fuel efficiency.
  4. Strong fuel odor near the vehicle.
  5. Failure to pass emissions testing.

How to Fix P0444 2005 Nissan Altima Sedan

  1. Diagnose the system using a scan tool to verify the P0444 code and pinpoint the exact issue.
  2. Inspect the Canister Purge Volume Control Solenoid Valve and its wiring for any damage or corrosion.
  3. Test the valve for proper operation and replace if necessary.
  4. Check the EVAP system for any leaks or other issues that may have contributed to the code.
  5. Clear the code and perform a test drive to ensure the problem has been resolved.

Cost to Fix P0444 2005 Nissan Altima Sedan

The typical repair costs for addressing a P0444 code on a 2005 Nissan Altima Sedan can range from $100 to $300. This estimate includes the cost of parts, such as a new Canister Purge Volume Control Solenoid Valve, and labor charges. It's important to note that actual repair costs may vary depending on the location, specific diagnosis time, and labor rates at auto repair shops. It's recommended to consult with a professional mechanic for a more accurate estimate.

What does this mean?

Tech Notes for P0444 2005 Nissan Altima Sedan

There is a factory service bulletin for the 2005 Nissan Altima:
2005 Nissan Altima Factory Service Bulletin OBDII Code P0444

When is the Code Detected?

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

Need more information about the P0444 2005 Nissan Altima Sedan code?

Need more information on how to fix the P0444 2005 Nissan Altima Sedan 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 Altima Sedan Code

1. What are the common symptoms of OBDII code P0444 in a 2005 Nissan Altima Sedan?

The common symptoms of P0444 in a 2005 Nissan Altima Sedan may include rough idling, decreased fuel efficiency, and the illumination of the Check Engine Light.

2. What does the OBDII code P0444 indicate in a 2005 Nissan Altima Sedan?

Code P0444 in a 2005 Nissan Altima Sedan indicates a problem with the EVAP (Evaporative Emission Control) system, specifically related to the Canister Purge Volume Control Solenoid Valve Circuit being open.

3. What are the possible causes of OBDII code P0444 in a 2005 Nissan Altima Sedan?

Possible causes of P0444 in a 2005 Nissan Altima Sedan include a faulty Canister Purge Volume Control Solenoid Valve, damaged wiring or connectors in the circuit, or a malfunctioning ECM (Engine Control Module).

4. How can I diagnose the issue causing OBDII code P0444 in my 2005 Nissan Altima Sedan?

To diagnose the issue causing P0444, you can perform a visual inspection of the Canister Purge Volume Control Solenoid Valve and its wiring, check for any loose connections, and use an OBDII scanner to retrieve additional fault codes.

5. Can I still drive my 2005 Nissan Altima Sedan with OBDII code P0444?

While it may be possible to drive your 2005 Nissan Altima Sedan with code P0444, it is recommended to address the issue promptly to prevent further damage to the EVAP system and ensure optimal vehicle performance.

6. How can I repair OBDII code P0444 in my 2005 Nissan Altima Sedan?

Repairing P0444 in a 2005 Nissan Altima Sedan typically involves replacing the Canister Purge Volume Control Solenoid Valve if it is faulty, repairing any damaged wiring or connectors, and clearing the trouble codes using an OBDII scanner.

7. Is it possible to reset the Check Engine Light after fixing OBDII code P0444 in my 2005 Nissan Altima Sedan?

Yes, you can reset the Check Engine Light after fixing P0444 in your 2005 Nissan Altima Sedan by using an OBDII scanner to clear the trouble codes stored in the ECM.

8. How much does it cost to repair OBDII code P0444 in a 2005 Nissan Altima Sedan?

The cost to repair P0444 in a 2005 Nissan Altima Sedan can vary depending on the extent of the issue and the labor rates in your area. Typically, replacing the Canister Purge Volume Control Solenoid Valve can cost between $100 to $300.

9. Can a DIY enthusiast fix OBDII code P0444 in a 2005 Nissan Altima Sedan?

If you have the necessary tools and automotive knowledge, you may be able to fix P0444 in your 2005 Nissan Altima Sedan as a DIY project. However, it is recommended to consult a professional if you are unsure about the repairs.

10. Will OBDII code P0444 cause emissions test failure for a 2005 Nissan Altima Sedan?

Yes, OBDII code P0444 can cause emissions test failure for a 2005 Nissan Altima Sedan, as it indicates a malfunction in the EVAP system, which is crucial for reducing harmful emissions from the vehicle.

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