Hi all, looking for help or similar stories. Got a gas cap light one day in my 2016 2500 6.4, pretty randomly i might say, tightened the cap and waited for engine cycles to reset light which eventually threw a cel for P0455. Bought a new gas cap, reset all codes. Then after multiple tank fills they both came back. Wondering if fuel pressure sensor in the filler tube might be the culprit. From what I could tell all hoses on evap looked good. Does anybody have a similar experience. Truck is under warranty still but if I can swap a $30 sensor on my own versus leaving my truck in the shop for a week I would prefer that. Thanks!