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Author Question: A vehicle failed an emission test due to high carbon monoxide and hydrocarbons in the exhaust gas. ... (Read 45 times)

abc

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on: Aug 13, 2021

Question 1

A small leak is detected by the evaporative emission control system monitor that could be caused by a loose gas cap. Which DTC will likely be set?
◦ P0440
◦ P0442
◦ P0446
◦ P0440, P0441, or P0442

Question 2

A vehicle failed an emission test due to high carbon monoxide and hydrocarbons in the exhaust gas. What could be the cause?
◦ Saturated EVAP charcoal canister
◦ Overfilling the fuel tank
◦ Either A or B
◦ Neither A nor B


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Marked as best answer by abc on Aug 13, 2021

bassamabas

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Reply #1 on: Aug 13, 2021

Answer 1

P0440, P0441, or P0442

Answer 2

Either A or B


abc

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

strudel15

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Reply 3 on: Yesterday
Gracias!

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