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 ...

Modern vehicles are pretty complicated pieces of tech. Apart from emissions and other vital functions, the engine control system relies heavily on several sensors to regulate performance. That is ...

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 ...

We earn commissions from purchases you make using links in our articles. Learn more. Problems with catalytic converters are one of the most common causes of check engine lights, but they’re extremely ...

Why Replace A Faulty Oxygen Sensor? A faulty sensor cannot transmit accurate data to the car's computer, causing the engine to run unbalanced. An unbalanced engine either burns fuel with too much or ...

Compare plans tailored to your car & budget. Catalytic converter replacement is a cost most car owners hope to avoid. Unfortunately, theft of this important car part has been more common in recent ...

This article was updated in November 2025. The words "catalytic converter theft" are enough to make anyone wince. Not only is it annoying, it's an expensive fix. The fact that a thief can slide under ...

All modern internal combustion engines have a catalytic converter, which is a part of the emission system of a car. The catalytic converter essentially prevents harmful gasses from entering into the ...

Daud Gonzalez is a lifelong car enthusiast and automotive writer with a specialty in modified and race-ready rides. He spends most of his time modifying his cars and ruining them in the process. He is ...