Air Fuel Ratio Sensor

ON-VEHICLE INSPECTION

1. CHECK AIR FUEL RATIO SENSOR




a. Disconnect the sensor connector.
b. Measure the heated resistance between terminals 1 (HT) and 2 (+B) of the sensor.

Standard resistance: 1.8 to 3.4 ohms at 20 degree C (68 degree F)

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