Fuel Tank And Lines: Overview

WARNING: This page is about a different car, the 2018 Land Rover Discovery Sport. 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: DESCRIPTION AND OPERATION

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 - LP fuel system
Fuel delivery line
Fuel Pump Driver Module (FPDM)
Flex Fuel Sensor (FFS) - Brazil vehicles only
Flex fuel filter- Brazil vehicles only.

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

The in-tank LP fuel pump also supplies fuel to the two jet pumps on either side of the fuel tank. Thereby the LP fuel pump provides sufficient fuel in the swirl pot.

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 LP fuel pump module to the FFBH fuel pump. An additional fuel line delivers the fuel to the FFBH located behind the front right fender.

For additional information, refer to: FUEL FIRED BOOSTER HEATER

Depending on model specification, the Brazil market vehicles may incorporate the flex fuel system. Flex fuel is a fuel mixture of ethanol and gasoline. Ethanol is an alcohol that can be used as a fuel. Ethanol is added to the gasoline, the ethanol proportion can be between 5 % and 85 %. E100 is a fuel with 93 % ethanol and 7 % water, with no gasoline admixture.