Two technicians are discussing clogged EGR passages. Technician A ...

[BRWH]

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

[Sarahjh]

Answer 1

A pulse-width modulated solenoid

Answer 2

Both technicians A and B

[BRWH]

TYSM

[Joy Chen]

Thanks for the timely response, appreciate it