Air-Fuel Ratio (A/F) Sensor - California

1. INSPECT HEATER RESISTANCE OF A/F SENSOR
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° (68° F)

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

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

c. Reconnect the A/F sensor connector.

2. INSPECT OPERATION OF A/F SENSOR: See "Related Diagnostic Charts" in this section