Air/Fuel Ratio Sensor

COMPONENTS

INSPECTION




INSPECT HEATER RESISTANCE OF A/F SENSORS (Bank 1 sensor 1, Bank 2 Sensor 1)
a. Disconnect the A/F sensor connector.
b. Using an ohmmeter measure the resistance between terminals +B and HT

Resistance:
0.8 - 1.4 Ohms at 20 °C (68 °F)
1.8 - 3.2 Ohms at 800 °C (1,472 °F)

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

Torque: 44 Nm (450 kg.cm, 32 ft.lb)

c. Reconnect the A/F sensor connector.