P0300 KIA -2008 ENGINE HESITATION ENGINE LIGHT ON

Question

my car's engine light came on, also it has some kind of hesitation, it all started after i filled my gas tank in a new gas station.

Answer 1

P0300 Random misfire

Hesitation after the filling the  tank, if the fuel tank is over filled you can send fuel into the charcoal canister , the fuel tank would need to be inspected for any debris that may have plugged its fuel filter