We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are ...

Oxygen sensors detect the amount of oxygen in the exhaust. Oxygen sensors usually don’t have a replacement schedule. A bad oxygen sensor can be diagnosed with a code reader or scan tool. A car’s ...

At the Detroit Free Press Breakfast Club Series on Tuesday, automotive leaders Mark Reuss, of General Motors, and Roger Penske, a racing executive and business man, discussed the automotive industry.

The MAP sensor is an important part of a car's operating system. But lots of things can make it go bad. Here's how you'll ...