Checking Vacuum Downstream Of Canister Purge Valve

With engine idling, disconnect hose between canister purge valve and EVAP canister from canister purge valve. Read out canister purge valve status to check whether it is activated. Check for vacuum in canister purge valve when valve is activated. If there is vacuum, go to CHECKING VACUUM AT EVAP CANISTER . If there is NO vacuum, go to CHECKING VACUUM TO CANISTER PURGE VALVE .