2016 1500 hemi. Gas cap light and evap codes will not go away

[Uconnjay1]

So far I have replaced the gascap the leak detection pump and the canister purge valve. I have tried disconnecting the battery. Nothing worked. Brought to dealer for smoketests. They found no leaks and claimed I needed a PCM flash which cost me $186 even though I have Totalcare. That was yesterday. So today the gascap light is back. What am I supposed to do now???? Dealership said PCM software fixed it yesterday. Obviously not.

 

[tron67j]

Replace the canister itself? Could be bad or have been flooded with gas. Not much knowledge beyond that. Good luck.

 

[Uconnjay1]

Would hope the service department checked that. I am bringing it back tomorrow cuz I am ****** they said it was fixed.