1/2 Downstream - 2.0/2.4L

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. Remove the air cleaner lid and makeup air hose.
2. Remove the negative battery cable.
3. Raise vehicle and support.
4. Disconnect electrical connector from sensor.
5. 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

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