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P1447 - Evaporative Emission Control System Purge Flow Monitor

Possible causes
- EVAP canister purge volume control solenoid valve stuck closed
- EVAP control system pressure sensor and the circuit
- Loose, disconnected or improper connection of rubber tube
- Blocked rubber tube
- Cracked EVAP canister
- EVAP canister purge volume control solenoid valve circuit
- Closed throttle position switch
- Blocked purge port
- Closed throttle position switch
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1447 Description

In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions. Purge volume is related to air intake volume. Under normal purge conditions (non-closed throttle), the EVAP canister purge volume control solenoid valve is open to admit purge flow. Purge flow exposes the EVAP control system pressure sensor to intake manifold vacuum.

P1447 Information for specific makes
P1447 AUDI Catalyst Temperature Circuit Open/Short to B+
P1447 BMW Diagnostic Module Tank Leakage Pump Too High During Switching
P1447 HONDA Battery Module Deterioration
P1447 INFINITI Evaporative Emission Control System Purge Flow Monitor
P1447 KIA Leak Detection Module Solenoid Valve Circuit Malfunction
P1447 NISSAN Evaporative Emission Control System Purge Flow Monitor
P1447 SUBARU Fuel Tank Sensor Control Valve Circuit High
P1447 VOLKSWAGEN Catalyst Temperature Circuit Open/Short to B+
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