Engine-Codes - Nissan - P1444 Nissan

P1444 Nissan Code - EVAP Canister Purge Volume Control Solenoid Valve

- Code Popularity: 98,982 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
ChatAC AutoCodes.com AI Chat

What are the Possible Causes of the DTC P1444 Nissan?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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)

Code Tech Notes

There is a Factory Service Bulletin for the following Nissan models:
2002 Nissan Altima
2003 Nissan Altima
2004 Nissan Altima
2005 Nissan Altima
2002-2005 Nissan Altima Factory Service Bulletin OBDII Code P1444

⚠ Does your Nissan have Safety Recalls? → Check here

How to Fix the DTC P1444 Nissan?

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 pins.

Search for P1444 Nissan Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1444 Nissan code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

The canister purge flow is detected during the specified driving conditions, even when EVAP canister purge volume control solenoid valve is completely closed.

What are Code Possible Symptoms?

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

What Does the P1444 Nissan Code Mean?

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.
P1444 Nissan Code - EVAP Canister Purge Volume Control Solenoid Valve

Need more Information on the Code?

Need more information on how to fix the P1444 Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1444 Nissan code diagnosed by a professional: Find a repair shop in your area