I went to autozone because my check engine light

P0440 - Check Gas Cap to be sure it is tight and not leaking air. Possibly just replace it.

P0410 - Secondary Air Injection system. Typically the check valve near the firewall goes bad. There is also one on the driver's side near the radiator. Could also be a fuse for the fan or the fan itself. The fan/blower is tucked under the left front fender - remove the wheel well liner to get to it. This is an emissions code only and will not effect the operation of the car. The check valves are roughly $200.00/ea. A lot of people choose not to fix this code.