P2192

P2192

Diagnosis information - DME

Lambda control adaptation in upper load range below limit value

NOTE: Diagnosis should indicate a negative deviation (leaning) of more than 30% of the lambda control adaptation in the lower load range (FRAU > 0.7).

Diagnostic conditions
- Battery positive voltage between 10 V and 16 V
- Lambda control active
- Engine temperature > 60 °C (140 °F)
- Engine load > 24 %
- Mass airflow > 240 kg/h

Possible fault causes
- Incorrect main filling signal from hot-film mass air flow sensor (setpoint voltage with stopped engine and ignition on =0.9 ... 1.1 V)
- Fuel pressure too high
- Mechanical fault of fuel injector(s) (leak)