Circuit/System Description
WARNING: This page is about a different variant/trim than selected.
For an overview of the component/system, refer to: Fuel System Description
| Component | Description |
|---|---|
| G12 Fuel Pump | The fuel pump has a DC motor that is controlled by a PWM signal to achieve the desired fuel pressure. |
| K111 Fuel Pump Driver Control Module | The control module K111 supplies the fuel pump with a PWM signal in order to achieve the desired fuel line pressure. |
| Q17 Fuel Injector | Fuel injectors are solenoid valves that inject fuel either into the intake system or directly into the cylinder. The amount of fuel injected depends on the length of the electrical pulse that is applied.The fuel injectors of this system have an operating voltage of 12 V. |
| Q18 Fuel Pressure Regulator | Q18 is part of the component: G18 High Pressure Fuel Pump The fuel pressure regulator is a diaphragm relief valve. The diaphragm has fuel pressure on one side and regulator spring pressure on the other side.The fuel pressure regulator maintains the correct fuel pressure to the fuel injection system.The fuel pressure regulator delivers the needed fuel to the fuel rail. The unused fuel drops back into the reservoir of the fuel tank fuel pump module.The fuel pressure regulator is not vacuum biased.The fuel pressure regulator maintains fuel pressure in the fuel feed pipe and the fuel rail in order to prevent long cranking times. |
| Fuel Pump Check Valve | The one-way check valve is part of the component: G12 Fuel Pump The check valve maintains pressure in the fuel feed pipe and the fuel rail in order to prevent long cranking times. |