Author Question: Two technicians are discussing clogged EGR passages. Technician A says that clogged EGR passages can ... (Read 103 times)

BRWH · **on:** Aug 13, 2021

Question 1

The linear EGR valve uses ________ to control the opening of the valve.
◦ A pulse-width modulated solenoid
◦ Vacuum
◦ A pressure valve
◦ None of these

Question 2

Two technicians are discussing clogged EGR passages. Technician A says that clogged EGR passages can cause excessive NOx exhaust emission. Technician B says that clogged EGR passages can cause the engine to ping (spark knock or detonation). Which technician is correct?
◦ Technician A only
◦ Technician B only
◦ Both technicians A and B
◦ Neither technician A nor B