P0457 - Check Fuel Cap

[Mustang5L5]

I have this code stored. It came up during my recent inspection. The CEL isn't lit

I've only driven the car 300 miles since buying it a month ago, and the check fuel cap light has not come on during that time (the bulb works). SHould I just ignore this code?

Also, anyone every have trouble passing inspection with stock 01-04 headlights? I did. They didn't think they were factory

 

[bdcardinal]

that code is for leaving the gascap open.