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Author Question: A vehicle comes into the shop and the technician retrieves the diagnostic code P0401 EGR flow ... (Read 266 times)

NguyenJ

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on: Jun 23, 2018
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


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bitingbit

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Reply #1 on: Jun 23, 2018
Answer to Question 1

C

Answer to Question 2

C


NguyenJ

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Reply 2 on: Jun 23, 2018
Wow, this really help

bigcheese9

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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