AutoCodes – Nissan – P1444 2005 Nissan Altima Sedan

P1444 2005 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve

Quick Answer

This system controls the flow rate of fuel vapor from the EVAP canister. Common causes include Faulty EVAP control system pressure sensor, Faulty EVAP canister purge volume control solenoid valve (The valve is stuck open.), Faulty EVAP canister vent control valve. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1444 2005 Nissan Altima Sedan indicates EVAP Canister Purge Volume Control Solenoid Valve.
Common causes: Common causes include Faulty EVAP control system pressure sensor, Faulty EVAP canister purge volume control solenoid valve (The valve is stuck open.), Faulty EVAP canister vent control valve.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 4,826

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 04, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1444 2005 Nissan Altima Sedan Description

This system controls the flow rate of fuel vapor from the 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.

OBDII Code P1444 2005 Nissan Altima Sedan - EVAP Canister Purge Volume Control Solenoid Valve - AutoCodes.com — P1444 2005 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve

What does this mean?

What are the Possible Causes of the DTC P1444 2005 Nissan Altima Sedan?

Faulty EVAP control system pressure sensor
Faulty EVAP canister purge volume control solenoid valve (The valve is stuck open.)
Faulty EVAP canister vent control valve
Faulty / Broken EVAP canister
Hoses (Hoses are connected incorrectly or clogged)

How to Fix the DTC P1444 2005 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

There is a Factory Service Bulletin for the 2005 Nissan Altima:
2005 Nissan Altima Factory Service Bulletin OBDII Code P1444

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1444 2005 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 P1444 2005 Nissan Altima Sedan Code

1. What does OBDII code P1444 for a 2005 Nissan Altima Sedan mean?

- This code indicates a problem with the EVAP canister purge volume control solenoid valve in the vehicle's emissions control system.

2. What are the common symptoms of a P1444 code in a 2005 Nissan Altima Sedan?

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

3. What are the possible causes of a P1444 code in a 2005 Nissan Altima Sedan?

- Causes may include a faulty EVAP canister purge volume control solenoid valve, vacuum leaks in the EVAP system, or a damaged EVAP canister.

4. How can I diagnose the issue triggering a P1444 code in my 2005 Nissan Altima Sedan?

- Diagnosing the problem may involve inspecting the EVAP system components for damage, checking for vacuum leaks, and testing the functionality of the purge volume control solenoid valve.

5. Can I continue driving my 2005 Nissan Altima Sedan with a P1444 code?

- It is generally not recommended to ignore a P1444 code, as it can lead to increased emissions and potential engine performance issues. It's best to address the problem promptly.

6. How can I repair a P1444 code in my 2005 Nissan Altima Sedan?

- Repair may involve replacing the EVAP canister purge volume control solenoid valve, repairing any vacuum leaks, or replacing damaged EVAP system components as needed.

7. Are there any tips for preventing a P1444 code in a 2005 Nissan Altima Sedan?

- Regular maintenance of the EVAP system, such as checking for loose or damaged components, can help prevent issues that may trigger a P1444 code.

8. How much does it typically cost to repair a P1444 code in a 2005 Nissan Altima Sedan?

- Repair costs can vary depending on the specific issue causing the code and the labor rates of the repair shop. It's advisable to obtain quotes from reputable mechanics.

9. Can a DIY enthusiast fix a P1444 code in a 2005 Nissan Altima Sedan?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address a P1444 code by following repair guides and using proper diagnostic equipment.

10. Will resetting the check engine light clear a P1444 code in a 2005 Nissan Altima Sedan?

- Resetting the check engine light may temporarily clear the code, but the underlying issue causing the P1444 code needs to be diagnosed and repaired to prevent it from reoccurring.