27A4

27A4 - P0441

Information saved in
DME

Fault code
27A4 - P0441

Fault text
Bank 1 EVAP evaporative emissions control operational test

Fault description


Condition for fault identification
Test condition:
Engine running time longer than K_TE_OBD_T_ML_Min
t�l > K_TE_OBD_TOEL_Min no catalyst heating V = 0 no
power transmission idle stabilized ml_ges <=
K_TE_OBD_ML_Max
A/C compressor torque change <
K_TE_OBD_MD_KKOS_ABBR Alternator torque change
< K_TE_OBD_MD_GEN
Terminal condition: Engine running
Voltage condition:
ub > K_ED_PlusMin

Condition for fault memory entry
Lambda change less than K_TE_OBD_LAM_DELTA and
ionic current integral change less than
K_TE_OBD_AUSS_DELTA and
K_TE_OBD_AUSS_DELTA_NEG and idle reaction less
than K_TE_OBD_Leerlauf_DELTA during opening and
closing and idle reaction less than
K_TE_OBD_Leerlauf_ZU_DE

Action in service
1. Carry out EVAP evaporative emissions control valve
system test
2. Check hose connections
3. Check EVAP evaporative emissions control valve,
replace as indicated
4. Following repair repeat the EVAP evaporative emissions
control valve system test

Fault effect and breakdown warning
Possible fuel odor / MIL on after engine runs 2x

Driver information
Warning light:
No

Service instruction
none