I know it has been discussed here but I wanted to bring up the P0456 code and hopefully help someone make a quick fix. It is fairly common and is described as a very minor EVAP system leak. Although there could be other causes, as suggested, I bought and installed a $15 replacement gas cap and that did the trick. I did that a week ago and no sign of the SES light since.

 

Nice! I never get that lucky with small fixes though lol

 

Same in the past for me but i spent $20 for my cap, so you did much better! Congrats