What Does It Mean When Your Exhaust Smells Like Rotten Eggs?

What Does It Mean When Your Exhaust Smells Like Rotten Eggs? A rotten egg smell in your car often indicates a malfunctioning part in the fuel system. If the catalytic converter, fuel filters, or fuel pressure sensors are worn out or damaged, a sulfur gas can leak out and make its way into your car’s

What Causes Bad Smell From Car Exhaust?

What Causes Bad Smell From Car Exhaust? Sulfur is found in gasoline, and is turned into hydrogen sulfide in the combustion process. However, the catalytic converter changes it into sulfur dioxide. … As the cat fails, it stops changing hydrogen sulfide into its odorless counterpart and the result is a strong smell of rotten eggs