Cavalier/Z24 L4-134 2.2L (1991)
Fuel Vapor Canister
VAPOR CANISTER AND PURGE OPERATION
This evaporative system uses a two tube canister. The fuel vapors vent from the fuel tank to the tube labeled "TANK" on the vapor canister. The canister
purge is controlled by a ported vacuum source. The vapors are purged when the engine is running above base idle speed.