Author Question: All these are causes of catalytic converter failure EXCEPT ________. (Read 63 times)

lb_gilbert · **on:** Aug 13, 2021

Question 1

A P0422 (catalytic converter efficiency failure) is set. What is a possible cause?
◦ Engine mechanical fault
◦ Exhaust leak
◦ Fuel contamination
◦ Any of these

Question 2

All these are causes of catalytic converter failure EXCEPT ________.
◦ Contamination
◦ Excessive temperature
◦ Incorrect air/ fuel mixture
◦ All of these are causes of converter failure.