Hi I have a 2017 Toyota rav4 and it has a evap issue. I have changed the gas cap the purge valve and the carbon canister assembly and it keeps saying I have a evap issue. The same codes keep coming up. After every part the codes were cleared but in a few days the all wheel drive is disabled 2wd mode see your dealer. I did go to the dealer 3 times and still has the same problem. Any advice would greatly appreciated I've been dealing with this for a few months now.