2.3.7. Fuel supply pump inlet pressureΒΆ

Description

The Fuel supply pump inlet pressure sensor measures the fuel pressure before the filters. The fuel pressure sensor is located in the high pressure pump.

ECU connection

The pin numbers at the ECU:

EDC17CV41+      2.33 5V supply voltage
EDC17CV41+      2.16 Analog input
EDC17CV41+      2.30 Ground

The pin numbers at the sensor:

Pin 1           Ground
Pin 2           Analog input
Pin 3           5V supply voltage

The fuel pressure sensor is shown in figure ECU connection EDC17CV41+, Fuel supply pump inlet pressure sensor.

../../_images/fuel_transfer_pressure_837070209.png

ECU connection EDC17CV41+, Fuel supply pump inlet pressure sensor

Characteristics

Output voltage:

At 100 kpa abs (~atmospheric pressure) = 1.9 V
At 300 kpa abs = 4.5 V

The fuel pre-pressure sensor characteristics are shown in figure Characteristics, Fuel supply pump inlet pressure sensor.

../../_images/Fuelprepres_char1.jpg

Characteristics, Fuel supply pump inlet pressure sensor