Five FAQs about this critical exhaust component, turning off check engine lights and passing emissions tests HOLLY, Mich., Sept. 10, 2025 ...

Although passenger vehicle catalytic converters have been mandatory for over 30 years, there is still plenty of room for improvement. For instance, they only work correctly when the engine is ...

Problems with catalytic converters are one of the most common causes of check engine lights, but they’re extremely expensive ...