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P1448 - EVAP Canister Vent Control Valve Open

Possible causes
- EVAP canister vent control valve
- EVAP canister is saturated with water
- EVAP control system pressure sensor and the circuit
- Blocked rubber tube to EVAP canister vent control valve
- Water separator

Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1448 Description

The EVAP canister vent control valve is located on the EVAP canister and is used to seal the canister vent.

This solenoid valve responds to signals from the Engine Control Module (ECM). When the ECM sends an ON signal, the coil in the solenoid valve is energized. A plunger will then move to seal the canister vent. The ability to seal the vent is necessary for the on board diagnosis of other evaporative emission control system components.

This solenoid valve is used only for diagnosis, and usually, remains opened. When the vent is closed, under normal purge conditions, the evaporative emission control system is depressurized and allows EVAP Control System (Small Leak)diagnosis.

P1448 Information for specific makes
P1448 AUDI Catalyst Temperature Sensor 2 Circuit Short to Ground
P1448 BMW Diagnostic Module Tank Leakage Pump Too Low During Switching
P1448 HONDA Battery Module Overheating
P1448 INFINITI EVAP Canister Vent Control Valve Open
P1448 JAGUAR Evaporative Emission Canister Purge Valve
P1448 KIA Leak Detection Module Malfunction
P1448 MINI-COOPER Diagnostic Module Tank Leakage Pump Too Low During Switching
P1448 NISSAN EVAP Canister Vent Control Valve Open  P1448 Video
P1448 SUBARU Fuel Tank Sensor Control Valve Range/Performance
P1448 VOLKSWAGEN Catalyst Temperature Sensor 2 Circuit Short to Ground
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