No it will not, they are 2 different designs.
Have you checked the gas floater in the gas tank?
sawzaw
about 300 miles
The fuel pump is located in the fuel tank. There is an access plate under the carpet above the fuel tank.
its inside the windshield washer fluid tank, you have to remove it to access the pump
The fuel pump on a 1991 Nissan 240 SX is located back by the fuel tank. It is an in-line pump, in the fuel line that runs from the gas tank to the carburetor. It is about the same size as a large soup can.
The little faded plasic tank near the passanger shock tower. It has a yellow top that says coolant only on it
The 1996 Nissan 240 fuel pump is located on the front side of the fuel tank. You will need to get beneath the vehicle in order to view the fuel pump.
It is in the fuel tank! Access panel is behind the rear seat and under the carpet. Pros only I am afraid.
In the gas tank itself
Your gas tank or one of your fuel lines is most likely leaking and your rear differential is probably leaking also. Your head gasket is located in the engine which is in the front of the car, not the rear. Take it to a mechanic because you DO NOT sound mechanically inclined enough to fix anything safely.
Start with the fuses. Check the fuel sending unit at the fuel tank, this is the most common part to cause a non working fuel gauge.