27AA - P2191 (DME)

27AA - P2191

Information saved in
DME

Fault code
27AA - P2191

Fault text
Charge plausibility, diagnosis hot - bank 1

Fault description
System Too Lean at Higher Load (Bank 1)

Condition for fault identification
Test condition:
Deviation from mean value (depending on psau, lam, aq) in
percent is determined and compared with the max.
deviation (in relation to rpm/load factor)
KF_FPLAU_OBD_AQ_DELTA_ML_MAX * expansion
factor (K_FPLAU_OBD_TE_F)
Terminal condition: Engine running
Voltage condition:
none

Condition for fault memory entry
10000 ms

Action in service
1. Check induction system B1 for leaks

Fault effect and breakdown warning
MIL on after engine runs 2x

Driver information
Warning light:
MIL

Service instruction
none