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

[Ebrown]

Two technicians are discussing clogged EGR passages. Technician A says 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?
 
  A) Technician A only B) Technician B only C) Both technicians D) Neither technician

Question 2

NOx readings at idle should be less than ________.
 
  A) 1 ppm B) 100 ppm
  C) 10 ppm D) None of these is correct

[cascooper22]

Answer to Question 1

C

Answer to Question 2

B

[Ebrown]

Excellent

[cici]

Thanks for the timely response, appreciate it