All these are causes of catalytic converter failure EXCEPT ________.
A) contamination
B) excessive water vapor
C) incorrect air/fuel mixture
D) excessive temperature

Question

Quizplus · Accepted Answer

Excessive water vapor is not a cause of catalytic converter failure, while contamination, incorrect air/fuel mixture, and excessive temperature are common causes. Water vapor, although it may impact the performance of the converter, is not typically a primary factor in its failure.

All These Are Causes of Catalytic Converter Failure EXCEPT ________