AutoCodesNissan – P1444 Nissan

P1444 Nissan 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 Nissan 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 101,004
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Jul 04, 2020
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Code P1444 Nissan 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 Nissan - EVAP Canister Purge Volume Control Solenoid Valve - AutoCodes.com
P1444 Nissan Code - EVAP Canister Purge Volume Control Solenoid Valve

What are the Possible Causes of the DTC P1444 Nissan?

  • 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 Nissan?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1444 Nissan 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 Nissan 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

Information for Specific Nissan Models

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 Nissan Code

1. What are common symptoms of OBDII code P1444 in a Nissan?

- Common symptoms include rough idling, decreased fuel efficiency, and a noticeable gasoline smell near the vehicle.

2. What could cause the OBDII code P1444 in a Nissan?

- The most common cause is a malfunctioning EVAP canister purge volume control solenoid valve, which may be stuck open or closed.

3. How do I diagnose the EVAP canister purge volume control solenoid valve in a Nissan with code P1444?

- You can diagnose the solenoid valve by checking for proper electrical connections, testing for vacuum leaks, and assessing the valve's operation using a scan tool.

4. Can a faulty gas cap trigger OBDII code P1444 in a Nissan?

- Yes, a loose or faulty gas cap can sometimes trigger this code as it can lead to an incomplete seal in the EVAP system.

5. What are the potential repair options for OBDII code P1444 in a Nissan?

- Repair options may include replacing the EVAP canister purge volume control solenoid valve, fixing any damaged hoses, checking and replacing the gas cap, and clearing the code with a scan tool.

6. Is it safe to continue driving with OBDII code P1444 present in a Nissan?

- It is generally not recommended to continue driving with this code active, as it can affect the vehicle's performance and fuel efficiency.

7. Can a DIY enthusiast fix OBDII code P1444 in a Nissan?

- Depending on the root cause, some DIY enthusiasts may be able to address this code by replacing the EVAP canister purge volume control solenoid valve or checking for common issues like loose hoses.

8. How does the EVAP system work in a Nissan related to code P1444?

- The EVAP system in a Nissan helps control fuel vapors from the fuel tank, and the purge volume control solenoid valve regulates the flow of these vapors to the engine for combustion.

9. Will resetting the OBDII code P1444 in a Nissan make it go away permanently?

- Resetting the code may temporarily turn off the Check Engine Light, but if the underlying issue is not addressed, the code is likely to reappear after driving cycles.

10. Is it necessary to get a professional diagnosis for OBDII code P1444 in a Nissan?

- While some aspects of diagnosing and fixing this code can be done by DIY enthusiasts, it is often recommended to seek a professional diagnosis for accurate troubleshooting and repair.

Discuss the causes and fixes for P1444 Nissan OBDII Code

  • ya cambie el canister, el swich solenoid y el gas cap y sigue la lus encendida de senalando que el problema persiste,. que mas puede ser?,.

  • Que modelo y año es su Nissan?

  • have 2004 Nissan quest codes p1444 7 PO441 WHERE ARE THEY LOCATED

  • Bot codes, the P1444 and P0441, point to the EVAP canister purge volume control solenoid valve. You should start by replacing the valve. The valve is on top of the engine:

  • there is no green cap there is cap attached to a hose that conext to the fule filter
    joe

  • Got this code on my 99 Nissan frontier v6 4x4. Not sure where this canister is. Check engine light is on also.

  • The canister is underneath your Frontier near the spar tire. See attache image.

  • Am having this issue with nissan maxima 2000. Could you please tell me how to locate yhe device fix this issue.

  • The problem is probably EVAP canister purge volume control solenoid valve.

    The valve is on top of the engine:

  • Whao, I appreciate your speedy feedback. Thanks. I thought as much but my problem here is I cant remove the cable from the valve. seems it was connected together. Please see my attached picture of how am trying to remove it but it stick together..

  • You have to press the tab on the blue connector and pull. You can also use a flat screwdriver to separate the connector while pressing the tab.

  • Thanks.... Sorry, what am talking about is thw black holes connected to the valve. How to remove it. Its join together with the device.

  • Spray some WD40 or carburetor cleaner on the hose. The cleaner will soften the hose and then use a small screw driver to separate the hose from the valve.

  • Thanks my friend. I will give that a trial.

  • This solenoid can be restored if it is OK electromagnetic coil. I replaced it with a coil of Lada, the price is $ 0.5.

  • Have replaced the valve for two days añd no more p1444 code on my nissan. Thanks alot AutoCodes.

  • Got this code on my 98 pathfinder

  • Start by checking the hoses to the EVAP canister, but due to the age of your Pathfinder, you probably need a new EVAP canister and pressure sensor.

  • Buenas noches colegas,

    tengo el caso de una frontier del 98 encontramos en el taller las vías de acceso al canister taponadas por el carboncillo que este lleva dentro vaciamos todo ese carboncillo pero el canister sigue tirando el mismo, que pasa si este trabaja sin ese carboncillo, puede que siga arrojando el mismo codigo de falla u otro, sera mejor cambiar el canister por completo

    gracias

  • El codigo P1444 lo tiro por que el Purge Volume Control Solenoid Valve debe de estar tapado.

    El canister si puede trabajar sin el carbon, pero hay una pequeña posibilidad que tire otro codigo.

  • I got this code on my Honda odyssey 2001 and im not sure where to look. Any suggestions? also nothing to do with this code or car but I have a Volkswagen 2001 passat and I cant find anything telling me where to find the torque converter clutch solenoid circuit any idea where that would be?

  • Please double check the code. I can't find any information about the P1444 code in the factory service manual for your 2001 Honda Odyssey.
    The Torque Converter Clutch Solenoid is attached to the Transmission Valve Body inside the transmission.

  • When I bought my 98 Frontier, it had the P1444 code showing (service engine light on perpetually). I changed the fuel filter because I know that people seldom do that, and the code and light went off, hasn't come back on since.

  • Thank you for sharing!!

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