Necessary equipment
DW170-010 Oxygen sensor removal and installation tool
Removal procedure
1. Disconnect the negative battery cable.
Note: The oxygen sensor has a one-piece pigtail and connector. Do not remove the flexible lead from the oxygen sensor. Damage or removal of the pigtail or connector will affect the performance of the oxygen sensor. Handle the oxygen sensor with care. Do not drop the oxygen sensor.
2. Disconnect the diagnostic oxygen sensor connector.
Attention! Let the engine cool before removing the oxygen sensor. Removing the oxygen sensor on a hot engine may damage the threads in the exhaust manifold.
3. Using the DW170-010 oxygen sensor remover and installer, carefully remove the rear control oxygen sensor with electric heater.
Installation procedure
Important: A special anti-seize compound is used on the oxygen sensor threads. This composition consists of liquid graphite and glass beads. The graphite burns out, but the glass beads remain and make it easier to remove the sensor. New or refurbished sensors already have the compound applied to the threads. If the sensor is removed from the engine or reinstalled, be sure to apply anti-seize compound to the threads before reinstalling.
1. If necessary, coat the threads of the diagnostic oxygen sensor with electric heater with non-stick grease.
2. Using the DW170-010 oxygen sensor remover and installer, install the rear control oxygen sensor with electric heater into the exhaust pipe of the muffler
Tighten
Tighten diagnostic oxygen sensor with electric heater to 50 Nm (37 lb-ft).
3. Connect the connector of the rear heated oxygen sensor.
4. Connect the negative battery cable.
