Tacoma 4WD L4-2.7L (3RZ-FE) (2004)
Oxygen Sensor: Testing and Inspection
Air-Fuel Ratio (A/F) Sensor
INSPECTION
1. INSPECT HEATER RESISTANCE OF A/F SENSOR
a. Disconnect the sensor connector.
b. Using an ohmmeter, measure the resistance between terminals +B and HT.
If the resistance is not as specified, replace the sensor.
Torque: 20 N.m (200 kgf.cm, 14 ft.lbf)
c. Connect the sensor connector.
2. INSPECT OPERATION OF A/F SENSOR