1/2 Downstream - 2.0/2.4L

WARNING: This page is about a different car, the 2006 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

The downstream heated oxygen sensor threads into the exhaust pipe behind the catalytic convertor. See Fig 1.

Fig 1: Locating Oxygen Sensor (1/1 Upstream & 1/2 Downstream)

Courtesy of DAIMLERCHRYSLER CORP.

1 - DOWN STREAM O2 SENSOR

2 - UP STREAM O2 SENSOR

Remove the air cleaner lid and makeup air hose.
Remove the negative battery cable.
Raise vehicle and support.
Disconnect electrical connector from sensor.
Disconnect sensor electrical harness from clips along body.

Fig 2: Downstream Heated Oxygen Sensor Removal/Installation
Courtesy of DAIMLERCHRYSLER CORP.

1 - DOWNSTREAM HEATED OXYGEN SENSOR

2 - CATALYTIC CONVERTOR
Remove sensor using an oxygen sensor crow foot wrench such as Snap-On tool YA8875 or equivalent.