Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
A very common problem with VZ.
Your ECM is faulty, and you need a new one, fitted and programmed.
The fuel gauge reading low is a secondary giveaway to your concern of a no crank condition.
The ECM tells the cluster how much fuel is in the tank.
ECMs demand outstripped supply, so were unavailable ex Holden at one point, should be better now.
Hope this helps.