Town Car V8-4.6L VIN W (1997)
Oxygen Sensor: Locations
OBD-II Heated Oxygen Sensor Numbering Convention
HO2S Locations
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.
- Cylinder bank number one is the bank that contains number one cylinder.
- If a V-6, V-8 or V-10 vehicle only uses one downstream Heated Oxygen Sensor (HO2S) it is numbered HO2S12, even if it uses two upstream
HO2S.
4.2L/4.6L
