Fuel Pump: Description and Operation

Fuel Pump And Sender Assembly (Typical):

The fuel pump is a turbine type, low pressure electric pump, mounted in the fuel tank. Fuel is pumped at a positive pressure (above 62 kPa or 9 psi) from the pump through an in-line filter to the pressure regulator in the TBI unit. Excess fuel is returned to the fuel tank through the fuel return line.