Originally Posted by phunk

If this happened after just taking a very hard right turn, and if it took less than 19 gallons to fill the tank afterwords, than you have experienced the notorious 370z fuel starvation. This happens when a hard right turn sloshes all the fuel to the driver side of the tank (while the pump resides on the passenger side). There is a large hump in the middle of the tank that does not allow fuel on the drivers side to naturally make it to the passenger side where the pump can get it.

If the car was truely out of fuel and it took 18-19 gallons to fill it back up, than you have a bad level sensor.

There are 2 level sensors, one for each side of the tank. They are potentiometers that are wired in series. Think of your fuel level gauge as a voltmeter. Voltage is passing through both the sensors in a series, their resistance lowers the voltage changing the display on your fuel level gauge indicator.