Friday, October 21, 2022

2D29 - P1105

2020 BMW 128i Coupe (E82) L6-3.0L (N51) Diagnostic Trouble Codes ( DTC ): Service instruction



none









2D29 - P1105 (DME)



2D29 - P1105







Information saved in



DME









Fault code



2D29 - P1105









Fault text



Differential-pressure sensor, intake manifold: plausibility









Fault description



Differential Pressure Sensor Intake Manifold Pressure Too High (Bank 1)









Condition for fault identification



Test condition:





Differential pressure sensor monitor 6 % < Relative charge factor <120 %





-20?< Induction air temperature sensor < 85 锟斤拷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



Visual inspection of vacuum sensor plug contacts



Check wiring between vacuum sensor and DME



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

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