Exhaust System: Locations

Engine Management System

Exhaust System Overviews







3.0L CCAA/ 3.2L CALA / BKH

Oxygen Sensor Cylinder Bank 1 (Right)






• 1- Heated Oxygen Sensor (HO2S) -G39-

• 2- Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-


Oxygen Sensor Cylinder Bank 2 (Left)






• 1- Heated Oxygen Sensor (HO2S) 2 -G108-

• 2- Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) -G131-

4.2L BVJ / BNK





1 Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) -G131-
2 Heated Oxygen Sensor (HO2S) 2 -G108-
3 Heated Oxygen Sensor (HO2S) -G39-
4 Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-

5.2L BXA





1 Oxygen Sensor (O2S) 3 Behind Three Way Catalytic Converter (TWC) -G287-
• Exhaust bank III (cylinder 6, 7, 8)
2 Heated Oxygen Sensor (HO2S) 3 -G285-
• Exhaust bank III (cylinder 6, 7, 8)
3 Oxygen Sensor (O2S) 4 Behind Three Way Catalytic Converter (TWC) -G288-
• Exhaust bank IV (cylinder 9, 10)
4 Heated Oxygen Sensor (HO2S) 4 -G286-
• Exhaust bank IV (cylinder 9, 10)
5 Heated Oxygen Sensor (HO2S) 2 -G108-
• Exhaust bank II (cylinder 4, 5)
6 Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) -G131-
• Exhaust bank II (cylinder 4, 5)
7 Heated Oxygen Sensor (HO2S) -G39-
Exhaust bank I (cylinder 1, 2, 3)
8 Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-
Exhaust bank I (cylinder 1, 2, 3)