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Sensor, Differential Pressure: Description: Diesel

Fig 1: Exhaust Differential Pressure Sensor & Pressure Tubes
GC0146863Courtesy of CHRYSLER GROUP, LLC

The Exhaust Differential Pressure Sensor (2) is remotely mounted on the transmission housing. Two pressure tubes (3) measure pressure before and after the Diesel Particulate Filter (DPF)/Diesel Oxidation Catalyst (DOC). The sensor is critical for fail-safe of regeneration strategy, because it interprets high pressure drops as possible high soot loads.