Oxygen Sensor: Description and Operation

DESCRIPTION
The four Heated Oxygen Sensors (HO2S):
- are located in the dual converter Y pipe and in the exhaust connector which is located between the RH exhaust manifold and the dual converter Y pipe.
- react with the oxygen in the exhaust gases and generate a voltage based on this reaction.
- A low voltage indicates too much oxygen or a lean condition.
- A high voltage indicates not enough oxygen or a rich condition.