P1444 - EVAP Canister Purge Volume Control Solenoid Valve

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?
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)
  What does this mean?
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1444 Description

This system controls 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.

P1444 Information for specific makes
P1444 AUDI EGR Valve Position Sensor Range/Performance
P1444 BMW Diagnostic Module Tank Leakage Pump Control Open Circuit
P1444 FORD Purge Flow Sensor Circuit Input Low
P1444 INFINITI EVAP Canister Purge Volume Control Solenoid Valve
P1444 JAGUAR EVAP Canister Purge Control System
P1444 LEXUS Secondary Air Injection System Switching Valve Stuck Open Bank 2   
P1444 LINCOLN Purge Flow Sensor Circuit Input Low
P1444 MAZDA Purge Flow Sensor Low Input
P1444 MERCEDES-BENZ Evaporative Emission Canister Purge Valve Malfunction
P1444 MERCURY Purge Flow Sensor Circuit Input Low
P1444 MINI Diagnostic Module Tank Leakage Pump Control Open Circuit
P1444 NISSAN EVAP Canister Purge Volume Control Solenoid Valve
P1444 SAAB Evaporative Emission Canister Purge Valve High Input
P1444 SCION Secondary Air Injection System Switching Valve Stuck Open Bank 2   
P1444 TOYOTA Secondary Air Injection System Switching Valve Stuck Open Bank 2   
P1444 VOLKSWAGEN EGR Valve Position Sensor Range/Performance
Related Information
Repair Importance Level: 3
 
1=Low 2=Medium 3=High  
Repair Difficulty Level: 3
 
1=Easy 2=Moderate 3=Hard  
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