3.5L Gasoline Turbocharged Direct Injection (GTDI): Notes

The fuel charging and controls system consists of the:

• Throttle Body (TB).
• fuel injectors.
• fuel rails.
• fuel injection pump.
• FP  control module.
• turbochargers.

The fuel charging and controls system is:

• a Gasoline Turbocharged Direct Injection (GTDI) system.
• Pulse Width Modulated (PWM).

Fuel is metered directly into the combustion chamber. Fuel injectors pulse to follow engine firing order, in accordance with engine demand.

The various sensors detect any changes in the operating conditions and send signals to the PCM. This permits the PCM to control the opening duration (pulse width) of the fuel injectors and maintain optimum exhaust emission control and engine performance for all operating conditions.