2010 BMW 128i Convertible (E88) L6-3.0L (N52K) Manufacturer Code Page 325
Fault text
Misfire at low tank fill level
Fault description
Misfire Detected With Low Fuel
Condition for fault identification
Test condition:
Combustion consistency measurement. Starting at engine
speed n > 450 and n 740 hPa
Terminal condition: Terminal 15, engine on
Voltage condition:
Voltage in onboard electrical system > 10 V
Condition for fault memory entry
Combustion miss detected within four diagnosis windows
consisting of 1000 crankshaft rotations
Action in service
Refuel, ignition coils, spark plugs, ignition cables, injectors,
DME
Fault effect and breakdown warning
Driver information
Warning light:
according to the corresponding combustion miss fault
Service instruction
none
29E0 – P0171 (DME)
29E0 – P0171
Information saved in
DME
Fault code
29E0 – P0171
Fault text
Mixture control
Fault description
System Too Lean (Bank 1)
Condition for fault identification
Test condition:
Closed-loop lambda mixture control = Active
Terminal condition: Engine must be running
Voltage condition:
none
Condition for fault memory entry
65 sec. lambda controller + adaptation deviation in max.
1200 sec.
Action in service
– Visual inspection of affected components
– Find and repair leaks
– Mutual exchange of HFM or injector valves
– Inspect HFM plug-in contacts and electrical wires
– Check fuel pressure
Fault effect and breakdown warning
