Technician A says that the ECM may determine the amount of soot in the DPF by measuring the differential pressure across the DPF. Technician B says that the ECM may calculate or estimate the amount of soot in the DPF based on fuel consumption and the time since the last regeneration. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Both technicians are correct. The ECM can use differential pressure to measure soot levels and can also estimate soot accumulation based on fuel consumption and time since the last regeneration.

Technician a Says That the ECM May Determine the Amount