13 Oxygen Sensor Heating Ahead of TWC, Bank 1 - Open Circuit
Diagnosis conditions
- Battery voltage between 9.5 V and 16 V
- Time elapsed after engine start-up greater than 10 seconds
Possible fault cause
- Open circuit
Affected terminals
II/19
Diagnosis/Troubleshooting
NOTE: Do not use contact spray on the connectors to oxygen sensor.
Part 1
Part 2
NOTE: Do not exchange oxygen sensors ahead of catalytic converter and after catalytic converter.
Oxygen Sensor Heating Ahead of TWC, Bank 1 - Above Limit
P1115
Oxygen Sensor Heating Ahead of TWC, Bank 1 - Above Limit
Function
The heated oxygen sensor generates a current signal, starting at approx. 300 锟斤拷C, which provides information about the fuel/air mixture. This signal is
used for the regulation of fuel injection. The oxygen sensor is heated to bring it quickly to operating temperature in order to start oxygen sensing