I had the Evap code P144C popping up every few months and then weeks and then days.

I tried the ole “clean the seals on the capless gas tank system” trick...didn’t work!

Changed the purge valves on top of the engine...Didn’t Work!

Took the purge valve on the charcoal canister off and cleaned it out it back on...Didn’t work!!!

The “Fix” for me was when I Changed out the charcoal canister & purge valve!!!