AutoCodes - Nissan - P0444 2004 NISSAN ALTIMA SEDAN

P0444 2004 NISSAN ALTIMA SEDAN Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

Repair Importance Level: 1/3
Repair Difficulty Level: 3/3
Table of contents

|P0444 2004 NISSAN ALTIMA SEDAN code possible causes

  • 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 do I fix the P0444 2004 NISSAN ALTIMA SEDAN code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|P0444 2004 NISSAN ALTIMA SEDAN code tech notes

There is a factory service bulletin for the 2004 Nissan Altima:
2004 Nissan Altima Factory Service Bulletin OBDII Code P0444

|Cost of diagnosing the P0444 2004 NISSAN ALTIMA SEDAN code

Labor: 1.0

The cost of diagnosing the P0444 2004 NISSAN ALTIMA SEDAN code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P0444 2004 NISSAN ALTIMA SEDAN code detected?

An excessively low voltage signal is sent to ECM through the valve

|What are P0444 2004 NISSAN ALTIMA SEDAN code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|P0444 2004 NISSAN ALTIMA SEDAN code 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 2004 Nissan Altima Sedan - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open - AutoCodes.com

|Need more information with the P0444 2004 NISSAN ALTIMA SEDAN code?

Need more information on how to fix the P0444 2004 NISSAN ALTIMA SEDAN code? Get Access to Factory Service Manuals

|Need help with a P0444 2004 NISSAN ALTIMA SEDAN code?

Get the P0444 2004 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area

|P0444 2004 NISSAN ALTIMA SEDAN code comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0444 2004 Nissan Altima Sedan code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧
Repair Importance Level: 1
 
1=Low 2=Medium 3=High What is this?
Repair Difficulty Level: 3
 
1=Easy 2=Moderate 3=Hard What is this?