check engine light throwing code p0455

[tony_aveo05]

hello everyone, my 05 aveo automatic 1.6l just threw a p0455 code evap system leak code. any idea what it might be? no symptoms but i have emissions at the end of the month. thanks for any advice!

[EAD15]

The most common cause of that code is the fuel filler cap not being installed properly after refueling. Reseat the filler cap, clear the code, and see if it comes back

[gone.nb]

Hi. Have you replaced the gas cap? There is a black air hose connected to the air filter cabin, check in between the creases of the hose. If the creases have split apart or close to it, replace it. Hope that helps!