Oxygen Sensor: Description and Operation

- The heated oxygen sensor is equipped with a heater to provide constant detection of oxygen concentration even when exhaust gas temperature is low.
- The heated oxygen sensor sends oxygen content signals to the PCM.
- The heated oxygen sensor uses the principles of a solid electrolyte oxygen content battery.
- The heated oxygen sensors are fitted to each end of the exhaust manifold, the three way catalytic converter, and the front pipe.