29E6 - P2193 (DME)

29E6 - P2193

Information saved in
DME

Fault code
29E6 - P2193

Fault text
Fuel mixture adaptation 2, upper engine speed range

Fault description
System Too Lean at Higher Load (Bank 2)

Condition for fault identification
Test condition:
Fuel-supply system monitored with aid of mixture
adaptation data; here upper part-load range (multiplicative
adaptation), system too lean
Release conditions:
- No active EVAP purge-air discharge
- No faults that disable diagnosis are present
- Relative charge (load) > 55 %
- Mass airflow > 250 kg/h
- Compliance with temperature conditions
Terminal condition: Engine running
Voltage condition:
battery voltage < 11 volts or battery voltage > 16 volts

Condition for fault memory entry
Approximately 10 min.

Action in service
Induction vacuum leak/exhaust air leak (AFR O2 sensor !)
Low fuel pressure
Check oxygen sensors before cat.
Check tank EVAP air discharge (air leak !)
Check HFM (contamination, defect)

Fault effect and breakdown warning


Driver information
Warning light:
ECE MIL on (2nd cycle)

Service instruction
none