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Author Question: A vehicle comes into the shop and the technician retrieves the diagnostic code P0401 "EGR flow ... (Read 132 times)

CharlieWard

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on: Aug 13, 2021

Question 1

A typical EGR pintle-position sensor is what type of sensor?
◦ Potentiometer
◦ Rheostat
◦ Wheatstone bridge
◦ Piezoelectric

Question 2

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


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Marked as best answer by CharlieWard on Aug 13, 2021

Jordin Calloway

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Reply #1 on: Aug 13, 2021

Answer 1

Potentiometer

Answer 2

Clogged EGR ports or passages


CharlieWard

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Reply 2 on: Aug 13, 2021
Gracias!

laurnthompson

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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