DPF Pressure Sensor 076906051AX

Image is an example only, BRAND MAY VARY

A Diesel Particulate Filter (DPF) pressure sensor is a crucial component in a car's emission control system. Its main purpose is to monitor the level of soot or particulate matter (PM) accumulated in the DPF. The sensor is typically located either at the front or rear of the DPF and measures the pressure difference between the inlet and outlet of the filter.

When the DPF pressure sensor detects a high level of pressure drop or an excessive amount of soot accumulation in the filter, it sends a signal to the engine control unit (ECU). The ECU then initiates a process known as DPF regeneration to burn off the accumulated soot. This regeneration process usually involves raising the exhaust gas temperature to a certain level, which helps in oxidizing the trapped particulate matter and converting it into harmless gases. Essentially, the DPF pressure sensor plays a vital role in maintaining efficient vehicle emissions and ensuring a cleaner environment by constantly monitoring and regulating the performance of the DPF.