Technician a Says That During the End of Injection Stage

Technician A says that during the end of injection stage, the pressure in the control chamber forces the control piston downward against the nozzle valve, seating the nozzle valve and ending injection. Technician B says that the ECM de-energizes the piezoceramic actuator to cause a rapid return of the actuator to a resting position during the end of injection phase. Who is right?

A) A only"
B) B only"
C) Both A and B
D) Neither A nor B"

Correct Answer:

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