you need to check every one of those things till the code clears.
evap canister and the vent solenoid is in the driver side rear quarter panel wheel well.
purge solenoid is the one with 2 vac lines on the back of the engine, one vac line leads from the TB.
you know where the gas cap is.
vac leaks can be found by spraying carb cleaner at the vac lines when he car is running, if the idle jumps you found a leak.
you can also check all the wires to these sensors, and find a local junk yard, buy cheap parts.
