Exhaust System: Locations
Component Locations: Engine Management System
Exhaust / Oxygen Sensor Overviews
• 4.2L BVJ / BFM => [ (Item 1) ]
• 5.2L BSM => [ (Item 1) ]
• 6.0L BSB
4.2L BVJ / BFM
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 BSM
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)
6.0L BSB
I - Primary catalytic converter for cylinders 1, 2, 3; also referred to as exhaust bank 1
II - Primary catalytic converter for cylinders 4, 5, 6; also referred to as exhaust bank 2
III - Primary catalytic converter for cylinders 7, 8, 9; also referred to as exhaust bank 3
IV - Primary catalytic converter for cylinders 10, 11, 12; also referred to as exhaust bank 4
1.1 - Heated Oxygen Sensor (HO2S) -G39-
• Exhaust bank 1 (cylinder 1, 2, 3)
1.2 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-
• Exhaust bank 1 (cylinder 1, 2, 3)
2.1 - Heated Oxygen Sensor (HO2S) 2 -G108-
• Exhaust bank 2 (cylinder 4, 5, 6)
2.2 - Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) -G131-
• Exhaust bank 2 (cylinder 4, 5, 6)
3.1 - Heated Oxygen Sensor (HO2S) 3 -G285-
• Exhaust bank 3 (cylinder 7, 8, 9)
3.2 - Oxygen Sensor (O2S) 3 Behind Three Way Catalytic Converter (TWC) -G287-
• Exhaust bank 3 (cylinder 7, 8, 9)
4.1 - Heated Oxygen Sensor (HO2S) 4 -G286-
• Exhaust bank 4 (cylinder 10, 11, 12)
4.2 - Oxygen Sensor (O2S) 4 Behind Three Way Catalytic Converter (TWC) -G288-
• Exhaust bank 4 (cylinder 10, 11, 12)