Inlet Metering Valve (IMV)
The IMV is used to control the pressure in the Rail. The IMV receives a signal from the ECU which regulates the amount of fuel delivered to the High Pressure Chamber in the pump, thereby providing rail pressure control.

 

Temperature Sensor
The Fuel Temperature Sensor is mounted to the pump. Its role is to monitor the fuel temperature inside the pump and make the data available to the ECU.

 

Venturi
The Venturi is designed to optimise injector performance. It is fitted to the fuel low pressure outlet of the pump, and provides a negative pressure to the injector back leakage circuit.