I've replaced my purge solenoid, which fixed my car going into limp mode couple weeks later my cel came on for the codes listed above, I've replaced my vent canister solenoid last night and when I got to work this morning I came to a complete stop and got the check gas cap notification. I get this from time to time when I do come to a stop. I've even had my gas cap tested and it passed

you inspect the lines for leaks, thats mostly the issue if those other things are good