Fuel Charging And Controls: Introduction

The fuel charging and controls system is a gasoline DI (direct injection) system controlled by the engine control module (ECM).

The fuel charging and controls system consists of:

• LP and HP fuel lines.
• Two HP fuel pumps.
• Two fuel rails and a crossover tube.
• A fuel rail pressure (FRP) sensor.
• Eight fuel injectors.

LP fuel from the pump in the fuel tank is pressurized by the HP fuel pumps and supplied to the fuel injectors via the fuel rails and crossover tube. The engine control module (ECM) controls the fuel injectors and HP fuel pumps to inject the required volume of fuel into the combustion chambers.