Rio L4-1.6L (2004)
Canister Vent Valve: Description and Operation
Canister close valve
The Canister Close Valve (CCV) closes off the air inlet to the Evaporative Emissions Canister for the Evaporative Emissions System leak detection
inspection function. The CCV also prevents fuel vapors from escaping from the Evaporative Emissions Canister when the vehicle is not operating.