inside the tank
Good! Save gas!
prob a vacume leak
possibly your MAF sensor, fuel pump, ignition control module, so many more, I own one and these cars are very tempermental
I have a 1979 280zx also and just changed it it is located near the gas tank under the car in the passenger side
Try going to the following website: http://carfiche.com. Click on Service Manuals "Cars" and you can then download a free copy of the 1982 280zx manual. A picture might be better; but, a diagram can be found in the EF & EC (engine fuel and emmissions) section. 1982 & 1983 should be the same.
There is no firing order with datsun injection. It is a "batch fire" system. That means when 1 injector fires they all do. The system gets a signal from the ignition coil as to when to fire.
I believe it is in the rear driver side of your car. When you turn your key to the on position you should hear it "kick in."
It is outside of the fuel tank close to the rear passenger wheel. Can't miss the big silver/chrome tubular device sticking out with lines and wires coming off it.
Inside the gas tank.
I have a 1983 280zx, so I can tell you based on personal experience that it will run, however your mileage and performance will go down and it could damage your fuel system.
could be a million reasons. ranging from bad fuel, vacuum lines not connected, plugged up fuel filter, bad/dirty carb.
Yes, mine does have fuel injectors.