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Engine-Codes – Nissan – P0444 2005 Nissan Maxima

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

Quick Answer

The P0444 diagnostic trouble code (DTC) for a 2005 Nissan Maxima specifically refers to a fault in the EVAP (Evaporative Emission Control) system related to the Canister Purge Volume Control Solenoid Valve Circuit being open. Common causes include Faulty Canister Purge Volume Control Solenoid Valve, Damaged or corroded wiring in the circuit, Loose or disconnected electrical connectors. 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 Maxima indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
Common causes
Common causes include Faulty Canister Purge Volume Control Solenoid Valve, Damaged or corroded wiring in the circuit, Loose or disconnected electrical connectors.
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 13, 2024
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Code P0444 2005 Nissan Maxima Description

The P0444 diagnostic trouble code (DTC) for a 2005 Nissan Maxima specifically refers to a fault in the EVAP (Evaporative Emission Control) system related to the Canister Purge Volume Control Solenoid Valve Circuit being open. The EVAP system is designed to prevent fuel vapors from escaping into the atmosphere, capturing and storing them in a charcoal canister until they can be purged and burned in the engine. The Canister Purge Volume Control Solenoid Valve is responsible for controlling the flow of vapor from the charcoal canister to the engine intake manifold for combustion.

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

Common Causes of P0444 2005 Nissan Maxima

  1. Faulty Canister Purge Volume Control Solenoid Valve
  2. Damaged or corroded wiring in the circuit
  3. Loose or disconnected electrical connectors
  4. ECM (Engine Control Module) software issue
  5. EVAP system leaks or blockages

Symptoms of P0444 2005 Nissan Maxima

  1. Check engine light illuminated
  2. Rough idle or stalling
  3. Decreased fuel efficiency
  4. Strong fuel odor
  5. Failed emissions test

How to Fix P0444 2005 Nissan Maxima

  1. Begin by diagnosing the specific cause of the P0444 code using an OBD-II scanner to pinpoint the issue.
  2. Inspect the Canister Purge Volume Control Solenoid Valve and associated wiring for any signs of damage or corrosion.
  3. Test the electrical connections and connectors to ensure they are secure and functioning properly.
  4. Replace the Canister Purge Volume Control Solenoid Valve if it is found to be faulty.
  5. Clear the DTC and reset the check engine light after completing the repair to verify that the issue has been resolved.

Cost to Fix P0444 2005 Nissan Maxima

The typical repair costs for addressing a P0444 code on a 2005 Nissan Maxima can vary depending on the specific cause of the issue and the cost of parts and labor. In general, replacing the Canister Purge Volume Control Solenoid Valve and addressing any associated wiring or connector issues could range from $150 to $300 for parts, with additional labor costs of $100 to $200. It is important to note that diagnosis time and labor rates at auto repair shops can fluctuate based on various factors, so it is advisable to consult with a local mechanic for a more accurate estimate.

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 2005 Nissan Maxima Code

1. What does OBDII code P0444 on a 2005 Nissan Maxima indicate?

The code P0444 relates to a fault in the EVAP Canister Purge Volume Control Solenoid Valve Circuit.

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

Common symptoms include difficulty starting the vehicle, decreased fuel efficiency, and the illumination of the check engine light.

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

Potential causes include a faulty EVAP canister purge volume control solenoid valve, damaged wiring in the circuit, or a poor electrical connection.

4. How can I diagnose a P0444 code on my 2005 Nissan Maxima?

Diagnosis typically involves using an OBDII scanner to retrieve the specific code, inspecting the EVAP system components for damage or leaks, and testing the solenoid valve for proper operation.

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

While the vehicle may still be operable with a P0444 code, it is recommended to address the issue promptly to prevent potential damage to the EVAP system and ensure optimal vehicle performance.

6. How can I repair a P0444 code on my 2005 Nissan Maxima?

Repair options may include replacing the EVAP canister purge volume control solenoid valve, repairing damaged wiring, or addressing any loose connections in the circuit.

7. Are there any DIY tips for fixing a P0444 code on a 2005 Nissan Maxima?

DIY enthusiasts can start by checking for loose or damaged wiring connections, cleaning the solenoid valve, or replacing the valve if necessary. However, professional diagnosis and repair may be required for more complex issues.

8. How much does it cost to fix a P0444 code on a 2005 Nissan Maxima?

The cost of repairs for a P0444 code can vary depending on the specific issue, parts needed, and labor rates. It is recommended to obtain quotes from reputable mechanics or dealerships for accurate pricing.

9. Can a P0444 code on a 2005 Nissan Maxima cause other problems if left unresolved?

Leaving a P0444 code unaddressed can potentially lead to decreased fuel efficiency, increased emissions, and further damage to the EVAP system components over time.

10. How long does it typically take to repair a P0444 code on a 2005 Nissan Maxima?

The repair time for a P0444 code can vary based on the complexity of the issue and the availability of parts. In general, it may take a few hours to a full day for diagnosis and repair.

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