P0444 2003 Infiniti G35 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 Infiniti G35 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 Infiniti G35 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 Infiniti G35?
- 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 Infiniti G35?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0444 2003 Infiniti G35 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 Infiniti G35 Code
1. What does the code P0444 mean on a 2003 Infiniti G35?
P0444 indicates an open circuit in the EVAP Canister Purge Volume Control Solenoid Valve, meaning the valve is not functioning as intended to control fuel vapors.
2. What are the symptoms of code P0444 for a 2003 Infiniti G35?
Common symptoms include an illuminated Check Engine Light, increased fuel odor around the vehicle, reduced fuel efficiency, and potential difficulty passing emissions tests.
3. What causes the P0444 code on a 2003 Infiniti G35?
Possible causes include a faulty purge volume control solenoid valve, damaged or disconnected wiring, corroded electrical connectors, or a malfunctioning PCM (Powertrain Control Module).
4. Can I drive my 2003 Infiniti G35 with a P0444 code?
While you can drive the car, it is not recommended for an extended period as it may lead to increased emissions, poor fuel efficiency, and potential damage to other components.
5. How can I fix the P0444 code on my 2003 Infiniti G35?
Start by inspecting the solenoid valve for damage, check the wiring and connectors for corrosion or disconnection, and replace the valve if necessary. If the issue persists, further diagnostics of the PCM may be needed.
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 continuity and proper resistance. Consult the vehicle’s service manual for the correct specifications.
7. What is the cost to repair the P0444 code on a 2003 Infiniti G35?
Repair costs can vary, but replacing the purge solenoid valve typically costs between $100 and $300, including parts and labor.
8. Can a bad gas cap cause a P0444 code on a 2003 Infiniti G35?
No, a bad gas cap is unlikely to trigger a P0444 code. The issue is specific to the purge solenoid valve circuit and not related to the gas cap.
9. How do I prevent a P0444 code from occurring again?
Regularly inspect the EVAP system components, ensure wiring and connectors are secure and free of corrosion, and perform periodic maintenance as recommended by the manufacturer.
10. Will clearing the code with an OBDII scanner fix the P0444 issue?
Clearing the code may temporarily turn off the Check Engine Light, but it won’t fix the underlying problem. Proper diagnosis and repair are necessary to resolve the issue.
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