Evaporative Emissions System: Description and Operation
PURPOSETo prevent fuel vapors (HC) from escaping to the atmosphere.
OPERATION
Fuel vapors inside the Fuel Tank are routed to a canister containing activated charcoal, which absorbs and holds the vapors, preventing them from entering the atmosphere.
During certain operating conditions, fresh air is drawn into and through the Charcoal Canister, flushing the vapors into the throttle body and into the intake air stream.