Air Fuel Ratio Sensor

INSPECT HEATER RESISTANCE OF A/F SENSORS




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)
It the resistance is not as specified, replace the sensor.
Torque: 44 Nm (440 kg.cm, 31 ft.lb)
c. Reconnect the A/F sensor connector.