Ah okay. Any idea what would be causing the car not to start ?
Well you havent been very specific in the circumstances involved in it not starting so providing advice is difficult. Does it actually crank over? Is there any error codes logged in the computer? Has there been any previous issues other than the fuel guage?
Having said that generally speaking a car only needs three things to start, fuel, spark and compression. So is the fuel pump working? Is the battery in good working order? VE Commodores can be finicky on battery quality and can refuse to run properly or at all if the battery is substandard.