EVAP Canister Shutoff Valve (Function) - Below Lower Limit

P0446

EVAP Canister Shutoff Valve (Function) - Below Lower Limit

Function
The task of the shutoff valve is to seal the purge air line to the EVAP canister during the fuel tank leak test.

Diagnosis conditions
- Oxygen sensing system active.
- No secondary air.
- No secondary air diagnosis.
- Air mass [<] 30 kg/h.
- Idle speed.
- Vehicle speed = 0 km/h.
- Intake air temperature between -12 °C and 60 °C.
- Battery voltage [>] 11 V.
- Engine load [<] 2.4 ms.
- The vehicle must not be at an altitude of above 2448 m.
- Time elapsed after engine start-up [>] 1000 sec.
- No faults: Throttle position sensor, idle air control, load sensing, misfire detection, vehicle speed, EVAP canister purge valve, idle air control valve, mass air flow sensor, voltage supply, pressure sensor, shutoff valve and engine temperature.

P0446:

System Overview







Diagnosis Procedure







1 Check purge air line for blockage.

1. Remove front right-hand wheel housing liner.
2. Detach purge air line (connection face up) from EVAP canister.
3. Blow through purge air line with compressed air.