Oxygen Sensor: Testing and Inspection

INSPECTION

1. INSPECT HEATER RESISTANCE OF OXYGEN SENSOR

a. Disconnect the sensor connector.







b. Using an ohmmeter, measure the resistance between terminals +B and HT.

If the resistance is not as specified, replace the sensor.

Torque: 44 N.m (450 kgf.cm, 32 ft.lbf)

c. Reconnect the sensor connector.

2. INSPECT OPERATION OF HEATED OXYGEN SENSORS