Engine-CodesNissan – P0444 2006 Nissan Altima Sedan

P0444 2006 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

Quick Answer

The P0444 code on a 2006 Nissan Altima Sedan indicates a problem with the EVAP (Evaporative Emission Control) system. Common causes include Damaged Wiring: Corrosion, fraying, or breaks in the wiring connected to the Canister Purge Volume Control Solenoid Valve can cause an open circuit, Faulty Solenoid Valve: The solenoid valve itself may be defective and unable to properly control the flow of fuel vapors, Blown Fuse: A blown fuse in the EVAP system circuit can prevent the Canister Purge Volume Control Solenoid Valve from receiving power. 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 2006 Nissan Altima Sedan indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
Common causes
Common causes include Damaged Wiring: Corrosion, fraying, or breaks in the wiring connected to the Canister Purge Volume Control Solenoid Valve can cause an open circuit, Faulty Solenoid Valve: The solenoid valve itself may be defective and unable to properly control the flow of fuel vapors, Blown Fuse: A blown fuse in the EVAP system circuit can prevent the Canister Purge Volume Control Solenoid Valve from receiving power.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P0444 2006 Nissan Altima Sedan Description

The P0444 code on a 2006 Nissan Altima Sedan indicates a problem with the EVAP (Evaporative Emission Control) system. Specifically, it points to an issue with the Canister Purge Volume Control Solenoid Valve circuit being open. The EVAP system is responsible for capturing and storing fuel vapors from the fuel tank to prevent them from escaping into the atmosphere. The Canister Purge Volume Control Solenoid Valve is a crucial component that controls the flow of fuel vapors from the charcoal canister to the engine intake manifold for combustion.

OBDII Code P0444 2006 Nissan Altima Sedan - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
P0444 2006 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

Common Causes of P0444 2006 Nissan Altima Sedan

  1. Damaged Wiring: Corrosion, fraying, or breaks in the wiring connected to the Canister Purge Volume Control Solenoid Valve can cause an open circuit.
  2. Faulty Solenoid Valve: The solenoid valve itself may be defective and unable to properly control the flow of fuel vapors.
  3. Blown Fuse: A blown fuse in the EVAP system circuit can prevent the Canister Purge Volume Control Solenoid Valve from receiving power.
  4. Malfunctioning PCM: Issues with the Powertrain Control Module can disrupt communication with the Canister Purge Volume Control Solenoid Valve, leading to an open circuit.

Symptoms of P0444 2006 Nissan Altima Sedan

  1. Check Engine Light: The most common symptom associated with the P0444 code is the illumination of the check engine light on the dashboard.
  2. Rough Idle: A malfunctioning EVAP system can lead to rough idling or stalling of the engine.
  3. Decreased Fuel Efficiency: A faulty Canister Purge Volume Control Solenoid Valve can result in decreased fuel efficiency as the engine may not be receiving the correct fuel vapors.
  4. Strong Fuel Odor: If fuel vapors are not being properly captured and redirected, a strong fuel odor may be noticeable inside and outside the vehicle.

How to Fix P0444 2006 Nissan Altima Sedan

  1. Diagnose the Issue: Use an OBD-II scanner to confirm the P0444 code and perform a thorough inspection of the EVAP system components, wiring, and connections.
  2. Test the Solenoid Valve: Check the Canister Purge Volume Control Solenoid Valve for proper operation and replace it if necessary.
  3. Inspect Wiring: Examine the wiring harness for any damage or corrosion and repair or replace as needed.
  4. Check Fuses: Verify that all fuses related to the EVAP system are intact and replace any blown fuses.
  5. Reset the Code: After completing the repairs, clear the P0444 code from the vehicle's computer using the OBD-II scanner.

Cost to Fix P0444 2006 Nissan Altima Sedan

The typical repair costs for addressing a P0444 code on a 2006 Nissan Altima Sedan can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. Rates typically range between $80 and $150 per hour, with rates potentially higher at dealerships or metropolitan areas and lower at independent shops. For a more precise estimate, it's recommended to inquire with local auto repair shops.

Tech Notes for P0444 2006 Nissan Altima Sedan

There is a factory service bulletin for 2006 Nissan Altima

2006 Nissan Altima Service Bulletin OBDII Code P0444

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 2006 Nissan Altima Sedan Code

1. What does OBDII code P0444 mean for a 2006 Nissan Altima Sedan?

The code P0444 in a 2006 Nissan Altima Sedan indicates a problem with the EVAP Canister Purge Volume Control Solenoid Valve Circuit being open.

2. What are the common symptoms of OBDII code P0444 in a 2006 Nissan Altima Sedan?

Common symptoms of code P0444 include rough idling, poor fuel economy, and the illumination of the check engine light on the dashboard.

3. What are the possible causes of OBDII code P0444 in a 2006 Nissan Altima Sedan?

Potential causes of code P0444 include a faulty 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 related to code P0444 in my 2006 Nissan Altima Sedan?

To diagnose the problem, you can use an OBDII scanner to read the code, inspect the wiring and connectors for any damage, and test the purge volume control solenoid valve for proper operation.

5. Can I still drive my 2006 Nissan Altima Sedan with OBDII code P0444?

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

6. How can I repair OBDII code P0444 in my 2006 Nissan Altima Sedan?

Repairing code P0444 may involve replacing the faulty purge volume control solenoid valve, repairing any damaged wiring or connectors, or resetting the ECM after addressing the underlying issue.

7. Is it necessary to reset the check engine light after fixing OBDII code P0444 in a 2006 Nissan Altima Sedan?

Yes, it is recommended to reset the check engine light using an OBDII scanner after resolving the problem related to code P0444 to ensure the system registers the repair.

8. Can a DIY enthusiast fix OBDII code P0444 in a 2006 Nissan Altima Sedan?

Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to address code P0444 by following repair guides and tutorials specific to the EVAP system in the vehicle.

9. How much does it typically cost to repair OBDII code P0444 in a 2006 Nissan Altima Sedan at a mechanic?

The cost of repairing code P0444 can vary depending on the specific issue, parts required, and labor rates, but it may range from $100 to $300 at a mechanic's shop.

10. What is the importance of fixing OBDII code P0444 in a 2006 Nissan Altima Sedan?

Fixing code P0444 is essential to maintain the proper functioning of the EVAP system, ensure fuel efficiency, and prevent potential emissions-related issues that could affect the vehicle's performance and environmental impact.

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