The ends of the filter plugged in a checkerboard pattern force the soot containing exhaust to flow through the porous filter walls.
Diesel particulate filter differential pressure sensor.
The dpf differential pressure sensor detects the difference between the exhaust pressure upstream and downstream of the diesel particulate filter by means of the exhaust pressure sampling pipes upstream and downstream of the dpf.
The signal of the sensor is not sufficient to determine an optimized timing for regeneration of the dpf.
The most common diesel particulate filters in widespread use are cellular ceramic honeycomb filters with channels that are plugged at alternating ends as shown in figure 1.
What does code p244b mean.
The temperature sensor upstream of dpf monitors exhaust temperature during regeneration.
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