EVAP Canister Purge Volume Control Solenoid Valve
Table of contents
P1444 INFINITI Possible 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)
How do I fix code P1444 INFINITI?
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’s pins.
Cost of diagnosing the P1444 INFINITI code
The cost of diagnosing the P1444 INFINITI code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs 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.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1444 INFINITI 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.