AutoCodes – Nissan – P1444 2004 Nissan Maxima

P1444 2004 Nissan Maxima 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 2004 Nissan Maxima 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 4,513

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 Nov 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1444 2004 Nissan Maxima 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 2004 Nissan Maxima - EVAP Canister Purge Volume Control Solenoid Valve - AutoCodes.com — P1444 2004 Nissan Maxima Code - EVAP Canister Purge Volume Control Solenoid Valve

What does this mean?

What are the Possible Causes of the DTC P1444 2004 Nissan Maxima?

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 2004 Nissan Maxima?

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 P1444 2004 Nissan Maxima 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.

Need more information about the P1444 2004 Nissan Maxima 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 P1444 2004 Nissan Maxima Code

Q: What are common symptoms of OBDII code P1444 in a 2004 Nissan Maxima?

A: Common symptoms include rough idle, poor fuel economy, and the illumination of the check engine light.

Q: What does the EVAP Canister Purge Volume Control Solenoid Valve do in a 2004 Nissan Maxima?

A: The solenoid valve controls the flow of fuel vapors from the charcoal canister to the engine for combustion.

Q: What are possible causes of OBDII code P1444 in a 2004 Nissan Maxima?

A: Causes may include a faulty purge volume control solenoid valve, damaged hoses, or a malfunctioning evaporative emission control system.

Q: How can I diagnose the EVAP Canister Purge Volume Control Solenoid Valve issue in my 2004 Nissan Maxima?

A: Diagnose the issue by checking for vacuum leaks, testing the solenoid valve with a multimeter, and inspecting the hoses for any signs of damage.

Q: Can I drive my 2004 Nissan Maxima with OBDII code P1444?

A: It is not recommended to drive your vehicle with this code as it can lead to further damage and reduced fuel efficiency.

Q: How do I repair OBDII code P1444 in my 2004 Nissan Maxima?

A: Repair may involve replacing the EVAP Canister Purge Volume Control Solenoid Valve, repairing or replacing damaged hoses, and clearing the error code with an OBDII scanner.

Q: Are there any DIY tips for fixing OBDII code P1444 in a 2004 Nissan Maxima?

A: DIY tips include checking and tightening all connections, inspecting the vacuum lines for leaks, and ensuring the solenoid valve is receiving power.

Q: Can a dirty air filter cause OBDII code P1444 in a 2004 Nissan Maxima?

A: While a dirty air filter can affect engine performance, it is not typically a direct cause of code P1444. Focus on inspecting the EVAP system components first.

Q: What role does the EVAP system play in a 2004 Nissan Maxima?

A: The EVAP system helps prevent harmful fuel vapors from being released into the atmosphere by storing and purging them through the engine when necessary.