OBD-II regulations require that the EGR system be tested. Technician A says that the PCM can monitor the commanded position of the EGR valve to determine if it is functioning correctly. Technician B says that the PCM can open the EGR valve and monitor for a change in the MAP sensor reading to detect if the system is functioning correctly. Which technician is correct?

A) Technician A only
B) Technician B only
C) Both technicians
D) Neither technician


C

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What will be an ideal response?

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