Update: so yeah turns out the P1456 for me IS the gas cap. I cleared the code with my own scanner and then for about 20 miles the code never returned Sat night but the scanner showed a yellow light, indicating a pending cycle (system not completely done running all its checks). This sunday morning the car was driven for about 10 more miles and the CEL never returned and the scanner showed all green. Bet!
For anyone reading the code means there is some kind of EVAP leak near the fuel tank which is located near the back of the car. from my limited research, it could be the gas cap (loose or damaged), charcoal canister or the fuel pressure sensor (I'm not so sure if we even have a fuel pressure sensor lol). I had gotten the OTHER code P1457 a few years ago and changed out the charcoal canister and that fixed the code for me.
Hopefully no more codes show up for a WHILE! Ironically I had just passed NY state inspection the day before (on Friday haha).
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Haha yeah needed a little more distance and the next rung on the steel is too much so I used that flip flop just to temporarily hold that plastic bracket up. Works great and all good now except a P1456 came up but I think it is the gas cap.