Preliminary Work

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Remove pressure pipe.
→ 214119 REMOVING AND INSTALLING PRESSURE PIPE .
1. 1.1. Loosen screw-type clamps -1- and remove pressure pipe in an upward direction -arrows- .
  
  Fig 1: Removing Pressure Pipe In Engine Compartment
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Pull off original rubber sleeve on the throttle body by opening the screw-type clamp.