Does the Purge Vacuum Switching Valve have anything to do with the fuel sender?

What is your question?

Recently, 2010 Toyota Pruis just shut down - Orginally told the Purge Vacuum Switching Valve needed to be replaced along with updating ECU Software. Then was told the Fuel Sender & Gasket need to be replaced. This both happened the day after I had the oil changed & tires rotated. Everything came back with a pass rating. Reasoning asking - Was told one was covered by the warranty & the other is not!! Any Help Much Appreciated!