Upstream Oxygen Sensor
WARNING: ENSURE THAT THE EXHAUST CATALYST ARE COLD BEFORE COMMENCING WORK
Removal
1. Disconnect battery ground cable. Service and Repair
2. Release sensor connector from mounting bracket and disconnect.
3. Remove front muffler. Service and Repair
4. Remove sensor.
Installation
1. Installation is a reversal of the removal procedure. See Battery Reconnection Procedure. Service and Repair