Condition for fault identification
Test condition:
The fault is recognized when the lambda controller on one bank is above 25 % and simultaneously below -25 % on the other bank.
Potential problem source(s):
- Oxygen sensors before catalytic converter interchanged.
Terminal condition: none
Voltage condition:
- None
Temperature condition:
- Engine temperature > 85 °C
Time condition:
- None
Other conditions:
- Engine on
- No additional diagnostic fault codes logged