Diagnosis/troubleshooting - all naturally-aspirated models
Diagnostic conditions
- Exhaust temperature between 250°C and 550°C
- No other oxygen sensor faults
- Battery positive voltage between 10 V and 16 V
- Time elapsed after engine start-up greater than 200 seconds
Possible cause of fault
- High resistance in connector or triggering wire
Affected terminals
DME control module, connector II, pin 13 and oxygen sensor jack ahead of catalytic converter, bank 2, pin 2
Diagnosis/troubles hooting
NOTE:
- Do not use contact spray on the oxygen sensor plug connections as this may cause irreparable damage to the wiring (contamination of the oxygen sensor via the reference air channel).