DTC P2189, BMW Hex Code 0x29F0, BMW Code 10736: System Too Lean at Idle (Bank 2) (SIG): Subcomponent

Fuel-supply system monitored with aid of mixture adaptation data; here idle range (additive adaptation), system too lean - Release conditions: - No active EVAP purge air discharge - No faults that disable diagnosis are present - Mass airflow < 34 kg/h - Compliance with temperature conditions