Evaporative Emission Control Canister: Description and Operation

CANISTER




The canister incorporates a drain valve and a drain filter.

The charcoal filled in the canister temporarily stores fuel vapors. When the purge control solenoid valve is opened by a signal from the ECM, the external fresh air entering the canister carries the fuel vapors into the collector chamber.

The drain filter is installed at the air inlet port of the drain valve. It cleans the air taken in the canister through the drain valve.

The drain valve is located just below the drain filter. The drain valve is forcibly closed by a signal from the ECM while the evaporation system diagnosis is being conducted.