Where would the internal fuel pump be located on a 1988 Volvo 240 DL?

The 1988 Volvo 244 utilized the Bosch LH 2.2 Jetronic fuel injection system. There are two fuel pumps; a lift pump to which you refer is mounted inside the gasoline tank. There is a second, high pressure pump under the car next to the gasoline filter. To remove the tank pump, you remove the "bung" which also has the fuel sender connected to it.