9-3 Coupe (9400) L4-2.0L Turbo (B204) (1999)
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Rollover Valve: Description and Operation
The rollover shut-off valve closes only in the event of the car rolling over and thereby prevents fuel leakage.
The valve is connected to the EVAP canister by a pipe. Expanding fumes from the tank are vented through the valve and the EVAP canister.