With the problems at refill that points to the EVAP system. I would check that system out before replacing anymore sensors or other parts.
There are parts of the EVAP system that are under vacuum while running.
Issues with certain EVAP valves will not show up with a smoke test. So you can have a vacuum leak in the EVAP system that is not detected by a smoke test.
A vacuum leak in the EVAP system can cause your codes and all your other issues.
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