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Air Fuel Ratio Sensor
INSPECT HEATER RESISTANCE OF A/F SENSORS(Bank 1 sensor 1, Bank2 Sensor 1)
a.
Disconnect the A/F sensor connector.
b.
Using an ohmmeter measure the resistance between terminals +B and HT.
Resistance:
At
20 °C (68 °F) 0.8 - 1.4 Ohms At
800 °C (1,472 °F) 1.8 - 3.2 Ohms 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.
