My Mother-in-law past away about 2 years ago. She owned a 2004 Chevy Aveo that has been sitting for that time. Put a new battery on it and tried to start it. Noticed the gas gauge showed empty. Put 5 gallons in it and it still shows empty. Not getting any fuel to throttle body. I can put fuel in the breather tube and it will start. My question is, is there a reset or something else that would cause the fuel pump and gas gauge not to work? The car was in the dry during the 2 years. Any help will be appreciated.