2.4.2.4. Diesel particle filter (DPF) upstream pressure sensorΒΆ

Description

The DPF upstream pressure sensor measures the pressure before the DPF and DOC. The sensor has pipe connection to the exhaust line.

ECU connection

The pin numbers at the ECU:

EDC17CV41+      2.09 5V supply voltage
EDC17CV41+      2.86 Analog input
EDC17CV41+      2.40 Ground

The pin numbers at the sensor:

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

The DPF upstream pressure sensor is shown in figure ECU connection EDC17CV41+, DPF upstream pressure sensor.

../../_images/ACW1805880.png

ECU connection EDC17CV41+, DPF upstream pressure sensor

Characteristics

Output voltage:

At   0 kpa diff = 0.5 V
At 350 kpa diff = 4.5 V

The DPF upstream pressure sensor characteristics are shown in figure Characteristics, DPF upstream pressure sensor.

../../_images/DPFpDiffChar.png

Characteristics, DPF upstream pressure sensor