In a message dated 3/12/02 1:32:37 PM Eastern Standard Time, wilm@xxxx writes: << Does not the vacuum line between the charcoal canister and the throttle edge tapping serve a purpose? >> This vac line connection at the throttle edge tapping opens a purge curcuit for the cannister when the throttle valve butterfly opens. This allows vapors collected in the can to make it to the intake tract to be burned with the normal fuel air mixture. If the connection is not provided to provide vac when the throttle just comes off idle, then the tank will never purge. Jim 6147