Pickup L4-1949cc (G200z) (1984)
Oxygen Sensor: Service and Repair
The pigtail and connector on the oxygen sensor are permanently attached and should not be removed. Removal of, or damage to, the pigtail or connector
may affect proper operation of the sensor. When replacing the sensor, keep the inline electrical connector and louvered end free of grease or other
contaminants, including cleaning solvents.
1.
Disconnect electrical connector and any attaching hardware, then remove the sensor. Oxygen sensor may be difficult to remove if engine
temperature is below 120°F. Do not use excessive force, as this may damage threads in exhaust manifold or exhaust pipe.
2.
Reverse procedure to install. Torque sensor to 30 ft. lbs. New oxygen sensors are precoated with an anti-seize compound, however, if existing
sensor is being reinstalled, coat its threads with a suitable anti-seize compound.