Fuel Temperature Sensor
The fuel temperature sensor is located in the fuel feed line just before the high pressure pump.
The sensor consists of a temperature dependent resistor with which works on the NTC principle.
The fuel temperature sensor registers the fuel temperature just before the high pressure pump. The fuel temperature sensor is installed on the low pressure side of the fuel system.
Fuel temperature sensor - E90
The density of the fuel changes as temperature changes. The DDE requires the fuel temperature for the purpose of precisely calculating the start of injection and injection quantity.
The fuel temperature sensor consists of a temperature-dependent measuring resistor made from semiconductor material that is integrated in a housing. The measuring resistor has a negative temperature coefficient (NTC).
The digital diesel electronics compares the measured voltage with a characteristic curve that assigns a corresponding temperature to each voltage value.
The various sensors and actuators are required for ensuring effective operation of the fuel system and engine. Apart from ensuring compliance with legal requirements, these components are also responsible for providing outstanding engine performance and the associated acoustics.