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Engine-Codes – Nissan – P0444 2009 Nissan Altima Sedan

P0444 2009 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

Quick Answer

The P0444 diagnostic trouble code (DTC) for a 2009 Nissan Altima Sedan indicates a problem with the EVAP (Evaporative Emission Control) system. Common causes include Faulty EVAP canister purge volume control solenoid valve, Open or short in the wiring harness connected to the solenoid valve, Corrosion or damage to 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 2009 Nissan Altima Sedan indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
Common causes
Common causes include Faulty EVAP canister purge volume control solenoid valve, Open or short in the wiring harness connected to the solenoid valve, Corrosion or damage to 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 14, 2024
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Code P0444 2009 Nissan Altima Sedan Description

The P0444 diagnostic trouble code (DTC) for a 2009 Nissan Altima Sedan indicates a problem with the EVAP (Evaporative Emission Control) system. Specifically, it points to an issue with the EVAP canister purge volume control solenoid valve circuit being open. The EVAP system is designed to capture and store fuel vapors from the fuel tank to prevent them from escaping into the atmosphere. The canister purge volume control solenoid valve is responsible for regulating the flow of fuel vapors from the charcoal canister to the engine intake manifold for combustion.

OBDII Code P0444 2009 Nissan Altima Sedan - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
P0444 2009 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

Common Causes of P0444 2009 Nissan Altima Sedan

  1. Faulty EVAP canister purge volume control solenoid valve
  2. Open or short in the wiring harness connected to the solenoid valve
  3. Corrosion or damage to electrical connectors
  4. Vacuum leaks in the EVAP system
  5. Faulty PCM (Powertrain Control Module)

Symptoms of P0444 2009 Nissan Altima Sedan

  1. Check engine light illuminated
  2. Rough idling or stalling
  3. Decreased fuel efficiency
  4. Strong fuel odor
  5. Difficulty starting the vehicle

How to Fix P0444 2009 Nissan Altima Sedan

  1. Begin by conducting a visual inspection of the EVAP canister purge volume control solenoid valve, wiring harness, and connectors for any visible damage or corrosion.
  2. Use a multimeter to test the solenoid valve for proper resistance and continuity. Replace the valve if it fails the test.
  3. Inspect the wiring harness for any open or short circuits. Repair or replace any damaged wiring as needed.
  4. Check for vacuum leaks in the EVAP system by performing a smoke test. Repair any leaks found.
  5. Clear the diagnostic trouble codes from the vehicle's PCM using an OBD-II scanner and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0444 2009 Nissan Altima Sedan

The cost of repairing a P0444 code on a 2009 Nissan Altima Sedan can vary depending on the specific cause of the issue. On average, the parts cost for a new EVAP canister purge volume control solenoid valve ranges from $50 to $150. Labor costs for this repair can range from $100 to $200, depending on the shop's hourly rate and the complexity of the repair. Overall, the total repair cost for addressing a P0444 code typically falls between $150 and $350. It is recommended to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's specific needs and location.

What does this mean?

Tech Notes for P0444 2009 Nissan Altima Sedan

Check to see if you have an disconnected, broken or cracked hoses first.

When is the Code Detected?

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

Need more information about the P0444 2009 Nissan Altima Sedan 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 2009 Nissan Altima Sedan Code

1. What are common symptoms of OBDII code P0444 in a 2009 Nissan Altima Sedan?

- Common symptoms include illuminated check engine light, rough idling, decreased fuel efficiency, and a noticeable gasoline odor.

2. What does the OBDII code P0444 for a 2009 Nissan Altima Sedan indicate?

- The code P0444 indicates a problem with the EVAP canister purge volume control solenoid valve circuit being open.

3. What are the possible causes of OBDII code P0444 in a 2009 Nissan Altima Sedan?

- Possible causes include a faulty EVAP canister purge volume control solenoid valve, damaged wiring or connectors in the circuit, or a malfunctioning PCM (powertrain control module).

4. How can I diagnose the issue causing OBDII code P0444 in my 2009 Nissan Altima Sedan?

- Diagnose the issue by checking the wiring and connectors for any damage, testing the EVAP canister purge volume control solenoid valve, and verifying proper PCM operation.

5. Can I drive my 2009 Nissan Altima Sedan with OBDII code P0444?

- It is generally safe to drive the vehicle with the code P0444, but it is recommended to address the issue promptly to prevent potential damage or further problems.

6. How can I repair OBDII code P0444 in my 2009 Nissan Altima Sedan?

- Repair options include replacing the EVAP canister purge volume control solenoid valve, repairing any damaged wiring or connectors, or reprogramming the PCM if necessary.

7. Will resetting the check engine light resolve OBDII code P0444 in my 2009 Nissan Altima Sedan?

- Resetting the check engine light may temporarily turn it off, but the underlying issue causing code P0444 will need to be diagnosed and repaired to prevent the light from coming back on.

8. Are there any DIY tips for troubleshooting OBDII code P0444 in a 2009 Nissan Altima Sedan?

- DIY tips include visually inspecting the wiring and connectors, checking for loose connections, and using a multimeter to test the solenoid valve's resistance.

9. How much does it typically cost to fix OBDII code P0444 in a 2009 Nissan Altima Sedan?

- The cost of fixing code P0444 can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor at a repair shop.

10. Can a mechanic easily resolve OBDII code P0444 in a 2009 Nissan Altima Sedan?

- A qualified mechanic should be able to diagnose and repair the issue causing code P0444 efficiently, ensuring proper functioning of the EVAP system in the vehicle.

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