Your car’s oxygen sensors and catalytic converter are key to both performance and emissions, but their accuracy can be upset by upstream faults. Issues like exhaust or vacuum leaks and misfires can ...

We may receive a commission on purchases made from links. Modern cars are designed to be more efficient and eco-friendly than ever. Automakers build vehicles with a wealth of advanced features to not ...

Problems with catalytic converters are one of the most common causes of check engine lights, but they’re extremely expensive to replace, so if you’re having issues, it makes sense to try one of the ...

Q:Hi James. I keep having an oxygen sensor fault code for a lean exhaust with my '97 Corvette. I've taken the vehicle to the dealer several times but the problem keeps recurring. I would like to try ...