Car Troubles

I have a diagnosis to my car and the check engine light on.

its the fuel filler assembly.....320 bucks

ok
not bad

but............
the part is on back order and they dont know when it will come in. Could take months. OK.......

But wont pass inspection if not replaced............

Better be in by August.

SO the jeep is having problems too and after some researching.......
it coudl be the same part
or the way i put the fuel thingie in to fill.

I am going to call jeep.
hopefully this is under warranty.