P1444 2003 Nissan Altima Sedan 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 2003 Nissan Altima Sedan 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.
Code P1444 2003 Nissan Altima Sedan Description
What are the Possible Causes of the DTC P1444 2003 Nissan Altima Sedan?
- 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 2003 Nissan Altima Sedan?
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
2003 Nissan Altima Factory Service Bulletin OBDII Code P1444
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1444 2003 Nissan Altima Sedan 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.
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Frequently Asked Questions about P1444 2003 Nissan Altima Sedan Code
1. What does the OBDII code P1444 mean on a 2003 Nissan Altima?
The code P1444 indicates an issue with the EVAP Canister Purge Volume Control Solenoid Valve, which manages the release of fuel vapors from the charcoal canister to the engine.
2. What are the symptoms of code P1444 in a 2003 Nissan Altima?
Common symptoms include a Check Engine Light, reduced fuel efficiency, difficulty starting the engine, and a noticeable fuel odor.
3. What causes the P1444 code to appear on a 2003 Nissan Altima?
The most common causes are a faulty purge volume control solenoid valve, clogged or damaged EVAP system hoses, electrical wiring issues, or a malfunctioning charcoal canister.
4. Can I drive my 2003 Nissan Altima with a P1444 code?
While the car may still be drivable, it is not recommended to ignore the code as it could lead to higher emissions, poor engine performance, or more severe EVAP system issues.
5. How do I fix the P1444 code on a 2003 Nissan Altima?
Start by inspecting the EVAP system hoses and connections for damage. If no issues are found, test and replace the purge volume control solenoid valve if necessary.
6. How do I test the EVAP Canister Purge Volume Control Solenoid Valve?
You can test the solenoid valve using a multimeter to check for proper resistance or apply power to see if the valve opens and closes as expected.
7. What tools are needed to repair the P1444 code on a 2003 Nissan Altima?
You may need a multimeter, a scan tool to clear the code, basic hand tools for removing and replacing parts, and possibly a vacuum pump for testing the EVAP system.
8. How much does it cost to fix the P1444 code on a 2003 Nissan Altima?
The cost can vary, but replacing the EVAP purge solenoid valve typically costs between $50 to $150 for parts, plus additional labor charges if done by a mechanic.
9. Can a loose gas cap cause the P1444 code on a 2003 Nissan Altima?
No, a loose gas cap usually triggers a different EVAP-related code, such as P0455 or P0442. P1444 is specifically related to the purge solenoid valve.
10. Will clearing the P1444 code fix the problem?
Clearing the code will turn off the Check Engine Light temporarily, but the issue will return unless the underlying cause is properly diagnosed and repaired.
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