A vehicle is brought in for a complaint of a rotten egg smell coming from the exhaust. The most likely cause is:
A) engine misfire
B) rich fuel command
C) both A and B
D) neither A nor B

Question

Quizplus · Accepted Answer

A rotten egg smell from the exhaust is typically caused by a catalytic converter processing excess sulfur from unburned fuel, which can result from both an engine misfire and a rich fuel mixture.

A Vehicle Is Brought in for a Complaint of a Rotten