Damping Canister

On 2.6L engines, a damping canister is used as a purge control device. It does not store vapor and is separated from them by the closed purge control valve. It is connected to the purge line in series with the primary canister and intake manifold. The damping canister cushions the effect of a sudden release of rich fuel vapors (when the purge control valve is opened) by temporarily holding vapors before they are gradually phased into manifold.