With your fuel gauge not working, take your lawn mower gas can to the gas station and fill it up, bring it back and pour it into your car's tank. Now try starting the car and don't pump the gas pedal. As I had stated earlier you have a fuel shut-off relay on your car. With no rpm or oil pressure that relay shuts off the fuel pump (like when you have no gas in it), not just to save the pump but to save you in case of an accident so that the fuel is not being pumped all over that could start a fire. Never run out of gas with a efi system because of damage it could cause to it. Next, fix that fuel gauge and get the FSM.
LARRY