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 ...

Question: I took your advice and bought an inexpensive scan tool. It’s been fun trying it out on several family cars, and I’m almost eagerly awaiting a problem so I can try to fix it. I’m curious ...

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 ...