A vehicle comes into the shop and the technician retrieves the ...

[NguyenJ]

A vehicle comes into the shop and the technician retrieves the diagnostic code P0401 EGR flow insufficient. Which of these could be the cause?
 
  A) Electrical wiring shorted B) EGR valve stuck open
  C) Clogged EGR ports or passages D) All of these are correct.

Question 2

A P0401 DTC (exhaust gas recirculation flow insufficient) is being discussed. Technician A says that a defective EGR valve could be the cause. Technician B says that clogged EGR passages could be the cause. Which technician is correct?
 
  A) Technician A only B) Technician B only C) Both technicians D) Neither technician

[bitingbit]

Answer to Question 1

C

Answer to Question 2

C

[NguyenJ]

Excellent

[Hdosisshsbshs]

TYSM