P0444 2003 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open
Quick Answer
This system controls flow rate of fuel vapor from the Evaporative Emission System (EVAP) canister. Common causes include 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. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P0444 2003 Nissan Altima Sedan indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
- Common causes
- Common causes include 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.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code P0444 2003 Nissan Altima Sedan Description
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.
What are the Possible Causes of the DTC P0444 2003 Nissan Altima Sedan?
- 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 to Fix the DTC P0444 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 P0444
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0444 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 P0444 2003 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0444 in a 2003 Nissan Altima Sedan?
- Common symptoms include the check engine light coming on, rough idling, decreased fuel efficiency, and potential difficulty starting the vehicle.
2. What does the OBDII code P0444 for a 2003 Nissan Altima Sedan indicate?
- OBDII code P0444 indicates a problem with the EVAP Canister Purge Volume Control Solenoid Valve circuit being open.
3. What are some possible causes of OBDII code P0444 in a 2003 Nissan Altima Sedan?
- Possible causes include a faulty EVAP Canister Purge Volume Control Solenoid Valve, damaged wiring or connectors in the circuit, or a problem with the vehicle's ECM.
4. How can I diagnose the issue related to OBDII code P0444 in my 2003 Nissan Altima Sedan?
- Diagnosing the problem may involve visually inspecting the wiring and connectors, testing the solenoid valve, and using a scan tool to check for other related codes.
5. Can I continue driving my 2003 Nissan Altima Sedan with OBDII code P0444?
- It is not recommended to continue driving with the issue unresolved, as it can lead to further damage and potentially affect the vehicle's performance.
6. How can I repair OBDII code P0444 in my 2003 Nissan Altima Sedan?
- Repairing the issue may involve replacing the EVAP Canister Purge Volume Control Solenoid Valve, repairing any damaged wiring or connectors, or resetting the ECM.
7. Are there any DIY tips for fixing OBDII code P0444 in a 2003 Nissan Altima Sedan?
- DIY tips may include checking and cleaning the connections, ensuring proper installation of the new solenoid valve, and clearing the trouble codes before testing the system.
8. Can a faulty gas cap cause OBDII code P0444 in a 2003 Nissan Altima Sedan?
- While a faulty gas cap can trigger related EVAP system codes, OBDII code P0444 specifically points to an issue with the EVAP Canister Purge Volume Control Solenoid Valve circuit.
9. What role does the EVAP system play in a 2003 Nissan Altima Sedan, and how does it relate to OBDII code P0444?
- The EVAP system helps control the emission of fuel vapors. OBDII code P0444 indicates a problem with the solenoid valve responsible for purging these vapors from the charcoal canister.
10. Is it necessary to visit a mechanic for OBDII code P0444 repair in a 2003 Nissan Altima Sedan?
- While some DIY enthusiasts may be able to address the issue, it is recommended to consult a mechanic for proper diagnosis and repair to ensure the problem is fully resolved.
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