check engine and trac light turn on

Hello im looking for some assistance on 2 codes my obd2 scanner is flagging

Codes
1. P0455
2. P0441

little info:
these pop up 2 weeks ago when i was leaving for work and after scanner and googling i found my gas cap was taken off i park outside so i figured someone just popped it off to mess with me.

Steps done to fix so far
1. retighten gas cap and cleared codes
2. ordered stant gas cap seen in other threads ( Amazon sent wrong one waiting for replacment)
3. looked at the purge valve seen that only one hose clamp was on, there was non on the side connecting to i wanna say air intake/outake and im not sure if it needs one on both side of hose

ive cleared the code a few times even drove from LA to san diego with no issues but today as i drove to work the trac light would turn off if i went over 30 miles but the check engine would stay on

 

Why not just get the OEM . It’s only 20plus $ at the dealer . I’ve read codes popping up with aftermarket’s . Stant cap included .

 

I would def put a OE gas cap on it. Forget about aftermarket there.