If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard ...

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 ...

Last month, we kicked this series off by showing you how to save some money by diagnosing a bad MAP sensor rather than just chucking cash at new parts that may or may not fix a specific problem. This ...

P0131 – O2 Sensor Circuit Low Voltage Bank 1 Sensor 1: The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared ...

Today’s computerised engine control systems rely on inputs from a variety of sensors to regulate engine performance, emissions and other important functions. The sensors must provide accurate ...

Modern car engine control systems rely on input from several sensors to regulate the engine’s performance as well as its emissions and other vital functions. When these sensors fail to provide ...

Q: My daughter has a 2001 Ford Explorer with 90,000 miles on it; it runs great. However when I changed the oil I found coolant in the oil, but the coolant level is full. In my 90 years I have never ...