Question

which of the following is most likely to cause catalytic convertor failure? select the correct answer: burned fuel unburned fuel both of these neither of these

Explanation:

Catalytic converters process exhaust gases. Unburned fuel entering the converter ignites inside it, creating excessive heat that melts or damages the converter's internal components. Burned fuel is the normal exhaust input the converter is designed to handle and does not cause failure.

Answer:

Unburned fuel