Expo LRV AWD L4-2350cc 2.4L SOHC 16 Valve (1993)
Oxygen Sensor: Description and Operation
California
Heated Oxygen Sensor Circuit
The oxygen (O2) sensors mounted in the exhaust system, monitor the amount of oxygen in the exhaust gas. The sensor has a closed tube made of ceramic
zirconia.
LOCATION
The oxygen sensors are located in the exhaust manifold, one ahead of the catalytic converter, the other behind it.
