Have had an evap leak for a long time now. Am going to get it smoke tested soon. Getting the codes P0442 and P0456. Already replaced the gas cap, my MPG is down in the shitter lately too. Used to get 14.2 pretty consistently, am now averaging 11-13. Ive checked the hoses on the evap canister, all seem to be in good shape, any spots that people know of are the "go-to" for the line splitting/ casuing the leak? And would this be the reason for my bad MPG?