Removal And Installation: Upstream

NOTE:

If the oxygen sensor needs to be replaced, connect the diagnostic equipment to the vehicle, go to "ECM" in the "Miscellaneous functions" menu and start the "Reset adaptive parameters" procedure.

REMOVAL

Disconnect and isolate the negative battery cable.
Remove the top engine cover. Refer to COVER, ENGINE, REMOVAL AND INSTALLATION .

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Release the clip (1a) and disconnect the wire harness connection (1b) for the oxygen sensor.
Remove the oxygen sensor from the catalytic converter (2).

INSTALLATION

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Install the oxygen sensor into the catalytic converter (1) and tighten it to the proper specification. Refer to TORQUE SPECIFICATIONS .
Engage the oxygen sensor wiring harness into the retaining clip (2b).
Connect the wire harness connection of the oxygen sensor (2a).
Install the top engine cover. Refer to COVER, ENGINE, REMOVAL AND INSTALLATION .
Connect the negative battery cable.