Mark VIII V8-4.6L DOHC (1996)
Oxygen Sensor: Component Locations
OBD-II Heated Oxygen Sensor Numbering Convention
The FIRST oxygen sensor in cylinder bank #1 is numbered HO2S11.
The SECOND oxygen sensor in cylinder bank #1 is numbered HO2S12.
The FIRST oxygen sensor in cylinder bank #2 is numbered HO2S21.
The SECOND oxygen sensor in cylinder bank #2 is numbered HO2S22.
Note:
- Cylinder bank number one is the bank that contains the number one cylinder.
- If a V-6 or V-8 vehicle only uses one downstream Heated Oxygen Sensor (HO2S) it is numbered HO2S12, even if it uses two upstream HO2S.
H02S Location
Heated Oxygen Sensor (HO2S) Locations
NOTE: Ford does not provide a picture location.
Two of the Heated Oxygen Sensors (HO2S) are located in the exhaust pipes below the exhaust manifolds before the catalytic converters.
Two of the Heated Oxygen Sensors (HO2S) are located in the exhaust pipes behind the catalytic converters.
