I know nothing about cars, what do?

>>17860424
Prolly either a massive obvious physical problem in your exhaust or the sensor is busted.

Take it to any shop and ask for a free estimate.

Not so serious, exhaust system is simple-ish and easy to acccess

Dont you have a warranty?

i think you just didnt tighten the fuel door all the way

>>17860424
tighten your fuel cap or replace it

evap sensor is somehow already toast or ur gas cap is loose. either way i would imagine its still under warranty

>>17860424
>buying the hideous "new" corolla
kys

>>17860424
Looks like your evap canister or purge valve is fucked
Could also be the sensor

However, the purge valve or canister usually doesn't leak until several years old due to rust. Did you get into an accident or run over a bump wrong?

It should still be under warranty since it's only 1 year