Fuel Pump Module
| ITEM | DESCRIPTION |
|---|---|
| 1 | Pipe connection - Fuel vapor to evaporative emission canister |
| 2 | Fuel supply connection |
| 3 | Electrical connector - Fuel level sensor |
| 4 | Fuel level sensor 'A' |
| 5 | Swirl pot |
| 6 | Jet pump connection - Left side of fuel tank |
| 7 | Electrical connector - Fuel pump |
| 8 | Fuel Fired Booster Heater (FFBH) fuel supply connection (if equipped) |
| 9 | Fuel inlet filter |
| 10 | Float - Fuel level sensor 'A' |
The fuel pump module is located in the right side of the fuel tank. The fuel pump module flange is sealed to the tank with an O-ring seal and secured with a locking ring.
The top flange of the fuel pump module provides the internal and external interface for the fuel tank electrical and fuel connections. The flange is formed with fuel level and fuel pump external electrical connectors that are connected to the fuel level sensors, and the in-tank fuel pump.
The lower part of the fuel pump module forms the fuel swirl pot, and provides the location for the in-tank fuel pump and the 2 jet pumps. The swirl pot provides a constant reservoir of fuel for the engine drawn fuel supply.
The fuel pump provide sufficient fuel is in the swirl pot to supply the engine's High Pressure (HP) fuel pumps demands. It can be executed by supplying the fuel to power the jet pump venturi's. The rapid flow of fuel through the venturi nozzle creates a depression. This pressure difference draws fuel back across the saddle from the left side of the tank into the pump side of the tank. The second venturi draws fuel from the pump side of the tank into the swirl pot. Surplus fuel entering the fuel swirl pot overflows into the usable right side of the fuel tank.