9-3 Coupe (9400) L4-2.0L Turbo (B204) (1999)
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Canister Purge Control Valve: Description and Operation
EVAP Canister Purge Valve (321)
The EVAP canister purge valve comprises a solenoid valve located in the line between the EVAP canister and the intake manifold.
It is used to regulate the amount of air/hydrocarbons that is passed from the EVAP canister to the engine for combustion. The EVAP canister purge valve
is also used during the tank integrity diagnosis.
When the ignition is off, the valve is closed.
