Front oxygen sensors are located in the exhaust system upstream of the catalytic converter, often deep in the engine bay. Front sensors are referred to as “Sensor 1” on scan tools.
Oxygen Sensors – How they work, and how to replace one yourself
Oxygen Sensors – How they work, and how to replace one yourself
Front oxygen sensors are located in the exhaust system upstream of the catalytic converter, often deep in the engine bay. Front sensors are referred to as “Sensor 1” on scan tools.