Your car's computer uses data from the O2 sensors to determine the effectiveness of the catalytic converter and how much fuel to inject. So they're critical pieces. Luckily, replacing one is ...

This video shows the complete oil change and oil level sensor replacement on the BMW E39 M5. We go step by step through the ...

Modern cars can do a lot of impressive stuff. The onboard diagnostic (OBD) system can tell us when there's a vehicle malfunction by activating the check engine light, while advanced car safety ...

The ABS sensor on your Toyota Corolla reads if the wheels are spinning and in case they block during braking, it will send a signal to the ABS’s computer to reduce the braking force on the wheel to ...

CARS.COM — Most car owners probably don’t know that their vehicle has a crankshaft position sensor until the engine dies, won’t start or starts running poorly. Then when the car is in the auto repair ...

Some HP monitors and laptops, such as the EliteBook, feature an ambient light sensor. This sensor detects the light level of the environment and adjusts the screen's brightness accordingly. If you ...

Q I drive a 2005 Toyota 4Runner SR5 with 85,000 miles on it. Other than routine repairs, the vehicle has been trouble-free for all the years I’ve owned it. About two months ago, the check engine light ...

A mass air flow sensor is one of the numerous tiny widgets and gewgaws that make up a modern automobile's electronic fuel injection system. In the MAF's case, it tells the car's computer how much air ...