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Supercharger charge pressure control function - GF09.50-P-3002GS

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Fig 1: Identifying Supercharger Charge Pressure Control Function - Supercharger Charge Pressure Control Function (1 Of 2)
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Fig 2: Identifying Supercharger Charge Pressure Control Function - Supercharger Charge Pressure Control Function (2 Of 2)
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The recirculated air flap actuator is positioned at the top part of the air cleaner to control the charge pressure. The recirculated air flap can be operated steplessly between 0 - 90°. This makes it possible to control the charge pressure downstream of the supercharger by means of the recirculated air line. At full throttle, the flap is always closed (maximum charge pressure).

The charge pressure is determined indirectly from the following variables:

  ME-SFI control module position / task / design / function   GF07.61-P-5000GS
  Recirculated air flap actuator position/task/design/function   GF09.50-P-3101GS 
  Supercharger position/task/design/function   GF09.50-P-3102G 
  Hot film mass air flow sensor position/task/design/function   GF07.07-P-4118GS
  Barometric pressure sensor position/task/design/function   GF07.04-P-5040GS
  Crankshaft position sensor position/task/design/function   GF07.04-P-4116F