Technician A says the DPFE (differential pressure feedback EGR)sensor determines the amount of gas flowing through the EGR valve by measuring the pressure drop across an orifice. Technician B says some EGR valves have an NTC thermistor that measures exhaust gas temperature at the outlet of the EGR valve. 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. Technician A is correct in stating that the DPFE sensor measures the pressure drop across an orifice to determine the flow of gas through the EGR valve. Technician B is correct in stating that some EGR valves have an NTC thermistor to measure the exhaust gas temperature at the outlet.

Technician a Says the DPFE (Differential Pressure Feedback EGR)sensor Determines