The fresh air tube is usually left at the lower part and is capped with a reed sort of rubber cap.
This EVAP canister is for emission control, to prevent raw gas from the fuel system to be discharged to the atmosphere.
It does not pose any problem if the lowe hose is unplugged. It is for preventing dust or other contaminants from getting into the canister to cause premature damage to the canister.
Sunday, August 1st, 2010 AT 3:25 AM