Fuel Tank and Lines: Overview

WARNING: This page is about a different car, the 2018 Land Rover Discovery and 2017 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.

The fuel delivery system incorporates a Low Pressure (LP) and High Pressure (HP) circuits to provide the engine with sufficient fuel for all operating conditions.

The HP system is described in 'Fuel Charging and Controls'. For additional information, refer to: FUEL CHARGING AND CONTROLS .

The emissions system is described in 'Engine Emission Control'. For additional information, refer to: ENGINE EMISSION CONTROL .

The LP fuel system features the following components:

Molded plastic saddle type fuel tank
Fuel pump module (with integral in-tank pump)
Two fuel level sensors
Fuel pressure sensor - Low pressure fuel system
Fuel delivery line
Fuel Pump Driver Module (FPDM).

The fuel system uses an electronically controlled return less fuel system. This will allow the LP pump to deliver fuel to the HP pumps, dependant on engine demand.

The in-tank LP fuel pump also supplies fuel to two jet pumps on either side of the fuel tank to provide that the fuel pump module swirl pot is kept full.

If the vehicle is equipped with a Fuel Fired Booster Heater (FFBH) the FFBH fuel pump is mounted on the right side of the fuel tank. A separate fuel line draws fuel from the fuel pump module to the FFBH fuel pump. An additional fuel line delivers the fuel to the FFBH located in the right front wheel arch. For additional information, refer to: FUEL FIRED BOOSTER HEATER .