Evaporative Emission Control Canister: Description and Operation
EVAP CANISTEREVAP Canister:
The EVAP canister is a sealed unit with 3 ports.
^ Purge line connection (1)
^ Vapor line connection (2)
^ Vent line connection (3)
The canister (3) is filled with carbon pellets used to absorb and store fuel vapors. Fuel vapor is stored in the canister until the control module determines that the vapor can be consumed in the normal combustion process.