The sensor is located on the Aftertreatment system, mounted directly on the DPF.
The soot load of the Diesel Particulate Filter is monitored by the DPF differential pressure sensor.
To protect the engine, the ECM activates the power derate. Cummins fault code 1922 becomes active when the soot load of the Diesel Particulate Filter (DPF) has exceeded the recommended limits.
