so recently i had the check engine light came up, i thought it was because i forgot to screw the gas cap in completely. after a day or two the light was still on so i scanned it at autozone and the code was P013C , im thinking i just need to replace that 02 sensor but when i checked i know it could be other issues, would it just be the sensor i need replacing or something more complex like that catalytic converter? i attached image of scan