AutoCodes – Nissan – P0444 2011 Nissan Altima Sedan

P0444 2011 Nissan Altima Sedan 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 2011 Nissan Altima Sedan 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 5,669

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0444 2011 Nissan Altima Sedan 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 2011 Nissan Altima Sedan - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open - AutoCodes.com — P0444 2011 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0444 2011 Nissan Altima Sedan?

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 2011 Nissan Altima Sedan?

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 does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0444 2011 Nissan Altima Sedan 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 2011 Nissan Altima Sedan Code

1. What does the OBDII code P0444 mean for a 2011 Nissan Altima Sedan?

The code P0444 indicates a problem with the EVAP Canister Purge Volume Control Solenoid Valve Circuit Open in the vehicle's emission control system.

2. What are the common symptoms of a P0444 code in a 2011 Nissan Altima Sedan?

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 a P0444 code in a 2011 Nissan Altima Sedan?

Potential causes of a P0444 code include a faulty purge volume control solenoid valve, damaged wiring or connectors in the circuit, or a defective ECM (engine control module).

4. How can I diagnose a P0444 code in my 2011 Nissan Altima Sedan?

Diagnosing a P0444 code involves using an OBDII scanner to retrieve the code, inspecting the purge volume control solenoid valve and its wiring for any visible issues, and testing the electrical circuit for continuity.

5. Can I still drive my 2011 Nissan Altima Sedan with a P0444 code?

It is generally safe to drive your vehicle with a P0444 code, but it is advisable to have the issue diagnosed and repaired as soon as possible to prevent potential damage to the emission control system.

6. How can I repair a P0444 code in my 2011 Nissan Altima Sedan?

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

7. Are there any DIY tips for fixing a P0444 code in a 2011 Nissan Altima Sedan?

While diagnosing and repairing a P0444 code may require some technical knowledge, DIY enthusiasts can start by checking the connections and wiring related to the purge volume control solenoid valve before seeking professional help if needed.

8. Will a P0444 code affect the overall performance of my 2011 Nissan Altima Sedan?

While a P0444 code may not directly impact the drivability of your vehicle, it can lead to decreased fuel efficiency and potential issues with the emission control system if left unresolved.

9. How much does it typically cost to repair a P0444 code in a 2011 Nissan Altima Sedan?

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

10. Can a P0444 code in a 2011 Nissan Altima Sedan cause the vehicle to fail an emissions test?

Yes, a P0444 code can cause your vehicle to fail an emissions test due to the malfunction in the EVAP system, which is designed to reduce harmful emissions from the vehicle.