Fuel Charging and Controls: Overview

Fuel Charging and Controls

OVERVIEW
The 2.0L GTDi engine is equipped with a high-pressure direct injection system controlled by the ECM (engine control module). A high-pressure fuel pump delivers a uniform level of pressure to the shared fuel rail, which serve all 4 fuel injectors. Pressure is controllable, to the optimum level for smooth operation, up to 150 bar (2175 lbf/in2).
The fuel charging and controls system consists of:
- LP and HP fuel lines.
- HP fuel pump
- Fuel rail
- FRP (fuel rail pressure) sensor
- Four fuel injectors.
LP fuel from the pump in the fuel tank is pressurized by the HP fuel pump and supplied to the fuel injectors via the fuel rail. The ECM (engine control module) controls the fuel injectors and HP fuel pump to inject the required volume of fuel into the combustion chambers.
The low pressure fuel system is covered in Fuel Tank and Lines. For additional information, refer to Fuel Tank and Lines Fuel Tank and Lines