That's important because internal combustion engines require a precise combination of air and fuel to create the small ...

Virtually every modern car on the road is equipped with bells, whistles, and sensors designed to let you know when even the slightest thing is wrong with your vehicle. While any driver can ...

The manifold absolute pressure sensor reads the amount of pressure or vacuum (also called “engine load”) in the intake manifold, where outside air is divvied up in proper amounts and ...

If your key fob dies, follow these simple steps to get your car running: Find the emergency key slot or backup sensor. Check ...

The engine’s knock sensor (or sensors) detects preignition and detonation, potentially damaging forms of abnormal combustion. Though full-blown knocking and pinging are audible to the human ear ...

And turbocharged cars would get a prescribed maximum boost pressure curve as a function of engine RPM." Torque sensors are replacing those mechanisms. "So with this new methodology, we are no ...

Your car’s Mass Air Flow (MAF) sensor monitors how much air is entering the engine, helping regulate your car's air-to-fuel ratio, and the engine’s heat. Before you start, ensure you have a ...

Driving the car normally and avoiding hard acceleration brings the engine to a warmer temperature ... That process uses sensors, which work with fuel injectors to ensure the correct air-fuel ...

What happens when you drive the car, right after you start it, oil gets all through the engine and lubricates the parts that it needs to. "When it sits there and it just idles, it's not getting ...

Pegasor, which sounds like the name of really bitchin' one-legged T-Rex, says that the sensor can be installed in the engine exhaust stream without the need for complex sampling and dilution ...

You’re driving along in your car or truck and suddenly a yellow light illuminates on your dash telling you to check or service your engine. If you’re like most car owners, you have little idea ...

Opinions expressed by Forbes Contributors are their own. Jim Gorzelany is a veteran automotive journalist. All vehicles built since 1996 are equipped with what’s called an OBD II (onboard ...