Why to Change Out a Rear O2 Sensor?

Answer Oxygen sensors, within a vehicle, play an important role for controlling fuel mixtures and reporting emissions information to the engine's on board computer. A rear O2 sensor resides behind the cat... Read More »

Top Q&A For: Why to Change Out a Rear O2 Sensor

How to Change a Rear ABS Sensor on a Mercury Mountaineer?

The Mercury Mountaineer features a anti-lock brake system for the rear wheels only. This system uses a sensor to measure the rotational speed of each wheel. The system adjusts the amount of braking... Read More »

How to Change the Rear Oxygen Sensor in a 1999 Ford E-150?

The rear oxygen sensor in a 1999 Ford E-150 monitors the exhaust gases coming out of the engine, and helps to adjust the air-to-fuel ratio. If the oxygen sensor fails, your E-150 will compensate by... Read More »

How to Change a Oxygen Sensor for a 1998 Ford Windstar Bank 2 Sensor 1?

Throughout the 1960s, 1970s and 1980s, automotive engineers made many strides to keep pace with the ever-changing emission laws, including: catalytic converters, unleaded fuel usage and oxygen sens... Read More »

How to Change a Narrowband O2 Sensor Over to a Wideband Sensor?

A narrow band O2 sensor is used primarily for tuning the air fuel ratio in your vehicle. The factory O2 sensor's purpose is to measure the amount of air and fuel being mixed in the throttle body. I... Read More »