Fuel Charging And Controls - V6 S/C 3.0L Petrol (G2006264): Overview
The fuel charging and controls system is a Direct Injection (DI) system controlled by the Powertrain Control Module (PCM).
Two High Pressure (HP) fuel pumps are deliver a uniform level of pressure to the two fuel rails, which serves the six fuel injectors. Pressure is controllable to the optimum level for smooth operation, up to 200 bar (2900 lbf/in2 ).
The fuel charging and control system consists of:
- Low Pressure (LP) and High Pressure (HP) fuel lines
- Two HP fuel pumps
- Two HP fuel rails and a crossover tube
- A Fuel Rail Pressure and Temperature (FRPT) sensor
- Six 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 PCM controls the fuel injectors and the HP fuel pumps to inject the required volume of fuel into the combustion chambers.
The LP fuel system is covered in Fuel Tank and Lines section. For additional information, refer to: FUEL TANK AND LINES