P1104

2D29 - P1104

Information saved in
DME

Fault code
2D29 - P1104

Fault text
Differential-pressure sensor, intake manifold: plausibility

Fault description
Differential Pressure Sensor Intake Manifold Pressure Too
Low (Bank 1)

Condition for fault identification
Test condition:
Differential pressure sensor monitor
6 % < Relative charge factor <120 %
-20� < Induction air temperature sensor < 85 °C
560 rpm < Engine speed < 7200 rpm
Time after start > 30 sec.
regardless of EVAP active/inactive
Terminal condition: Terminal 15, engine on
Voltage condition:
Voltage in onboard electrical system >= 10 V

Condition for fault memory entry
0.2 sec.

Action in service
1) Visual inspection of vacuum sensor plug contacts
2) Check wiring between vacuum sensor and DME
3) Check induction system/crankcase for leaks (crankcase
vacuum control can allow excess air from the crankcase to
flow into the intake manifold, for instance, if vacuum line
from brake booster to vacuum pump is leaking)

Fault effect and breakdown warning


Driver information
Warning light:
US: MIL ON

Service instruction
none