The Oxygen Sensor (O2 sensor) is the "nose" of your engine’s computer. Positioned in your exhaust system, it constantly ...

The "Check Engine" light is the most feared dashboard notification, but for the Oxygen (O2) sensor, it is a lagging indicator ...

Was it really the result of a genuine act of self-preservation, with no other alternative, or was the killer desperately trying to cover-up a cold-blooded murder?