Oxygen Sensor Heating After TWC, Bank 2 - Signal Implausible

P0161

Oxygen Sensor Heating After TWC, Bank 2 - Signal Implausible

Diagnosis conditions
- Exhaust temperature between 300 degree C and 600 degree C
- Battery voltage between 9.5 V and 16 V

Possible fault cause
- Corrosion in connector
- Oxygen sensor

Affected terminals
II/1

Diagnosis/Troubleshooting

NOTE: Do not use contact spray on the connectors to oxygen sensor.

Work Instruction 1 - 3:

NOTE: Do not exchange oxygen sensors ahead of catalytic converter and after catalytic converter

Oxygen sensors ahead of and after catalytic converter







1 - Oxygen sensor ahead of catalytic converter
2 - Oxygen sensor after catalytic converter