What is a MAP sensor and how can you tell if it's bad?

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 ...
Hot Rod

How Accurate Are Wideband O2 Sensors? A Real-World Lambda Comparison Test

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

Where is the outside temperature sensor located on your car?

When your car says it’s hot outside, just how accurate is the reading? Where ...
pix11

The Car Doctor Q&A: Car overheating, check engine light and more

Viewer-submitted questions for The Car Doctor: Q: I was driving my 2002 Honda Accord and using the air conditioner. The temperature gauge was going higher, and when I turned off the car, I heard a ...
Motor Trend

How it Works: Ford Power Stroke Engine Controls

When Ford (in conjunction with International) converted the 7.3L IDI engine from mechanical to the hydraulically actuated electronically controlled unit injection (HEUI) system, the Power Stroke brand ...