Optima L4-24L (2001) Oxygen Sensor Diagrams (Page 2466)
Oxygen Sensor: Service and Repair
REPLACEMENT OXYGEN SENSOR
The oxygen sensor is a device which controls the fuel mixture. If the oxygen sensor is damaged, the exhaust-gas cleaning effect as well as driveability
deteriorates. Therefore, its performance should be checked periodically using the O(2) sensor monitoring function of the scan tool and replaced as
necessary.
