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 ...

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

When your car says it’s hot outside, just how accurate is the reading? Where ...

Don't let failing oxygen sensors compromise your engine's performance. O2 sensors are critical to emissions control on your car, SUV or truck. As the name implies, the O2 sensor (also called an ...