DTC 18609

SAE VAG Description
P2177 18609 System Too Lean Off Idle Bank 1

Intake system
- Intake system, checking for leaks (false air). Intake Air System, Checking For Leaks (False/Unmetered Air)

Oxygen sensor and oxygen sensor control before catalytic converter
- Oxygen sensor and oxygen sensor control before catalytic converter, checking. Oxygen Sensor and Oxygen Sensor Control Before Catalytic Converter, Checking
- Check wiring diagram.

Oxygen sensor and oxygen sensor control behind catalytic converter
- Oxygen sensor and oxygen sensor control behind catalytic converter, checking. Oxygen Sensor and Oxygen Sensor Control Behind Catalytic Converter, Checking
- Check wiring diagram.

Oxygen sensor and oxygen sensor control in center catalytic converter
- Oxygen sensor and oxygen sensor control in center catalytic converter, checking (engine code BBW).
- Check wiring diagram.