Question 1 of 20 : Select the best answer for the question
1. Technician A says that manually opening an exhaust gas recirculation (EGR) valve with a vacuum pump or scan tool will cause the engine to idle roughly
stall. Technician B says that blocking the EGR valve passages will have no effect on the OBD-II. Who is correct?
O A. Technician A
O B. Both Technicians A and B
O C. Technician B
OD. Neither Technician A nor B
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