PO455 07 fmc focus,any suggestions?

Question

Had some gas stolen. "check fuel cap" lite for a day then check engine joined the lite show. Two days later they both went out. Forth day later check engine lite came on alone. I don,t have a "flapper" in the tank fill tube anymore, did I ever have one? Now what?

Answer 1

I dont understand what you mean by flapper, if your car model does not use a gas cap were is has the easy fuel 

you will have to replace the neck filler since it might be damaged and that is causing the light to stay on