Pacifica V6-3.8L VIN L (2005)
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Oxygen Sensor: Service and Repair
Upper O2 Sensor
REMOVAL
The engines uses two heated oxygen sensors.
CAUTION: When disconnecting the sensor electrical connector, do not pull directly on wire going into sensor.
1. Disconnect negative battery cable.
O2 Sensor Connector
2. Disconnect the upper O2 sensor connector.
Upstream O2 Sensor
3. Use a socket such as Snap-On YA8875 or a crow foot wrench to remove oxygen sensor.
INSTALLATION
NOTE: When replacing an O2 Sensor, the PCM RAM memory must be cleared, either by disconnecting the PCM C-1 connector or momentarily