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Author Question: A P0131 DTC is being discussed. Technician A says that an exhaust leak upstream of HO2S (bank 1) ... (Read 35 times)

Marty

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on: Aug 13, 2021

Question 1

A low O2S voltage could be due to ________.
◦ A rich exhaust
◦ A lean exhaust
◦ A defective spark plug wire
◦ Both B and C

Question 2

A P0131 DTC is being discussed. Technician A says that an exhaust leak upstream of HO2S (bank 1) oxygen sensor could be the cause. Technician B says that an extremely rich air-fuel mixture could be the cause. Who is right?
◦ Technician A only
◦ Technician B only
◦ Both technicians A and B
◦ Neither technician A nor B


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Marked as best answer by Marty on Aug 13, 2021

mochi09

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Reply #1 on: Aug 13, 2021

Answer 1

Both B and C

Answer 2

Technician A only


Marty

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Reply 2 on: Aug 13, 2021
Great answer, keep it coming :)

Missbam101

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Reply 3 on: Yesterday
Excellent

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