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High-pressure pump - exploded view > < Removing and installing regulating flap control unitJ808 and throttle valve moduleJ338

Leon Mk2

Cleaning throttle valve moduleJ338
Cleaning throttle valve module -J338-
  Note
t  If a new engine control unit -J623- is installed the throttle valve module must be adjusted. Adaption must only be performed with a new or cleaned throttle valve module, because soiling/coking in closed throttle valve can lead to incorrect adaption values.
t  Take care not to scratch the throttle valve housing when cleaning it.
–  Remove air filter → Chapter.
–  Remove throttle valve module → Chapter.
   
–  Open throttle valve by hand and lock in open position using a suitable object (e.g. wood or plastic wedge) -arrow-.
  WARNING
Acetone is highly inflammable. Please observe the accidental regulations and safety notes when handling with highly inflammable fluids. Do not use compressed air when cleaning the throttle valve. Wear eye protection and protective clothing to avoid possible injury and skin contact.
  N24-10125
–  Clean the throttle valve housing, especially in the area -arrows- where the throttle valve closes, using basically commercially available acetone (DIN 53247) and a small brush.
–  Wipe out throttle valve housing with a lint-free cloth.
–  Allow acetone to evaporate completely and re-install throttle valve module after cleaning.
–  Erase learnt values and adapt engine control unit -J623- to throttle valve module → Vehicle diagnostic, testing and information system VAS 5051„Guided functions“.
  N24-10124

High-pressure pump - exploded view > < Removing and installing regulating flap control unitJ808 and throttle valve moduleJ338