Calais L4-151 2.5L VIN U TBI (1989)
Fuel Vapor Canister
VAPOR CANISTER AND PURGE OPERATION
The venting of vapors to the canister is controlled by a diaphragm operated control valve. When the engine is running, manifold vacuum is supplied at
the top of the purge valve allowing the control valve diaphragm to open. The lower port on the purge valve is connected to ported vacuum.
