Starfinder is wrong on this one- the shutoff valve (and canister) is on the LR side- behind the fender liner. I've never seen one by the fuel pumps.

To help everyone- if the regeneration/purge valve is clicking after running a few minutes- pull the canister side hose off- the valve should be applying vacuum to the canister- if it is, it's probably OK. The shutoff valves are very common- easiest way to check is to plug it off and see if the system holds vacuum then- thats what the car does when it runs the test- actually you could get the car to run the test for you- must have between 1/4 and 3/4 a tank of fuel and let the car run an OBD2 drive cycle- if the code doesn't come back, the leak is gone.