AutoCodes – Nissan – P0444 2005 Nissan Sentra

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

Quick Answer

This system controls flow rate of fuel vapor from the Evaporative Emission System (EVAP) canister. Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Control, Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted, Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection. 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 Sentra indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
Common causes: Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Control, Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted, Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection.
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.

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Code Popularity 10,463

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 10, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0444 2005 Nissan Sentra Description

This system controls flow rate of fuel vapor from the Evaporative Emission System (EVAP) canister. The opening of the vapor by-pass passage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP canister purge volume control solenoid valve repeats ON/OFF operation according to the signal sent from the Engine Control Module (ECM). The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is determined by considering various engine conditions. When the engine is operating, the flow rate of fuel vapor from the EVAP canister is regulated as the air flow changes.
The EVAP canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.

OBDII Code P0444 2005 Nissan Sentra - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open - AutoCodes.com — P0444 2005 Nissan Sentra Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0444 2005 Nissan Sentra?

Faulty Evaporative Emission (EVAP) Purge Solenoid Control
Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection

How to Fix the DTC P0444 2005 Nissan Sentra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0444 2005 Nissan Sentra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 Sentra Code

1. What does the OBDII code P0444 mean for a 2005 Nissan Sentra?

The code P0444 indicates a problem with the EVAP canister purge volume control solenoid valve circuit being open in a 2005 Nissan Sentra.

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

Common symptoms of a P0444 code may include rough idling, decreased fuel efficiency, and the illumination of the check engine light on the dashboard.

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

Possible causes of a P0444 code in a 2005 Nissan Sentra 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 a P0444 code in my 2005 Nissan Sentra?

To diagnose a P0444 code, you should start by checking the wiring and connectors associated with the purge volume control solenoid valve. You can also use a multimeter to test the solenoid valve itself for proper functionality.

5. Can I still drive my 2005 Nissan Sentra with a P0444 code?

It is generally safe to drive your vehicle with a P0444 code, but it is recommended to address the issue promptly to prevent any potential damage to the engine or emissions system.

6. How do I repair a P0444 code in my 2005 Nissan Sentra?

Repairing a P0444 code may involve replacing the EVAP canister purge volume control solenoid valve, repairing or replacing damaged wiring or connectors, or reprogramming the ECM if necessary.

7. Will a P0444 code cause my 2005 Nissan Sentra to fail an emissions test?

Yes, a P0444 code can cause your 2005 Nissan Sentra to fail an emissions test since it indicates a problem with the vehicle's evaporative emission control system.

8. How much does it typically cost to fix a P0444 code in a 2005 Nissan Sentra?

The cost to fix a P0444 code in a 2005 Nissan Sentra can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Can a P0444 code be triggered by a loose gas cap in a 2005 Nissan Sentra?

While a loose gas cap is more commonly associated with the P0442 code, it is still possible for a loose gas cap to contribute to the triggering of a P0444 code in a 2005 Nissan Sentra.

10. How can I prevent a P0444 code from appearing in my 2005 Nissan Sentra?

To prevent a P0444 code from appearing, make sure to perform regular maintenance on your vehicle, including checking the integrity of the EVAP system components and addressing any issues promptly.