CONSTRUCTION
The canister purge VSV (No. 1 vacuum switching valve assembly) controls purge flow volume in accordance with duty signals from the ECM. Purge flow volume is determined by the on/off intervals of the drive signal from the ECM (duty ratio).
| *1 | Valve | *2 | Filter |
| *a | To Purge Port | *b | From Charcoal Canister Assembly |