there should be a single wire, i dont know what color it is you'll have to check a service manual. but its a fuel pump test outlet. all you have to do is put that wire to a 12V source and see if the pump starts. an easy way to check is disconnect the feed line from the motor and put a bucket underit and see if it shoots gas out of it. and if you do get gas, then its not your pump.
and yes, the fuel pump and sender are all in 1 unit in the gas tank.