AutoCodes – Infiniti – P1444 2005 Infiniti G35

P1444 2005 Infiniti G35 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 Infiniti G35 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 3,398

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 Aug 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1444 2005 Infiniti G35 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 Infiniti G35 - EVAP Canister Purge Volume Control Solenoid Valve - AutoCodes.com — P1444 2005 Infiniti G35 Code - EVAP Canister Purge Volume Control Solenoid Valve

What does this mean?

What are the Possible Causes of the DTC P1444 2005 Infiniti G35?

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 Infiniti G35?

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 2005 Infiniti G35 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 2005 Infiniti G35 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 2005 Infiniti G35 Code

What does OBDII code P1444 mean for a 2005 Infiniti G35?

OBDII code P1444 indicates a problem with the EVAP canister purge volume control solenoid valve, which is responsible for regulating the flow of fuel vapors from the EVAP canister to the intake manifold.

What are the common symptoms of a P1444 code?

Common symptoms include a check engine light, rough idling, decreased fuel efficiency, and possible difficulty starting the vehicle.

What can cause the P1444 code to trigger?

The code can be triggered by a faulty purge valve, electrical issues such as short circuits or broken connectors, leaks in the EVAP system, or a malfunctioning engine control module (ECM).

How can I diagnose the P1444 code?

To diagnose the P1444 code, inspect the EVAP system for leaks, check the purge valve for proper operation, examine electrical connections for damage, and use a scan tool to monitor the valve's performance.

What are some common repair solutions for a P1444 code?

Common repairs include replacing the EVAP canister purge volume control solenoid valve, fixing any vacuum leaks, repairing damaged wiring or connectors, and resetting the ECM.

Is it safe to drive with a P1444 code?

While it may be safe to drive short distances, it is not recommended to ignore the code, as it can lead to reduced engine performance and increased emissions.

Can I clear the P1444 code myself?

Yes, you can clear the code using an OBDII scanner, but it is advisable to address the underlying issue before doing so to prevent the code from reappearing.

How much does it typically cost to fix a P1444 issue?

Repair costs can vary widely but generally range from $100 to $400, depending on whether you need to replace the solenoid valve or make other repairs.

Will repairing the P1444 code improve fuel efficiency?

Yes, fixing the issue related to the P1444 code can improve fuel efficiency, as it helps ensure the EVAP system is functioning correctly and reducing fuel vapor losses.