I have 2000 Mailbu and the motor will hit but.

I have 2000 Mailbu and the motor will hit but not start. I can spray ether in it and it will run until ether is burnt up. The ignition module has been checked at parts place, coils show good resistance in primary and secondary with ohm meter, are within specs. It has new air filter, plugs, plug wires, fuel filter. I have checked the fire going to a couple of the plugs and I have it but haven't checked them all. Fuel pressure is around 45 psi (at fuel rail) and holds there for a good while. It has 3/4 tank of gas. When I crank it for a little while without stopping, I see the gas gauge drop off while it is still cranking, after about 15 seconds, ( like the voltage left the gas gauge) do you think it could be an electrical problem? Thinking it may be injectors, not sure. Anything for an answer would be appreciated. Thank You