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Injectors > < 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. Adaptation must be performed only with a new or cleaned throttle valve module, because soiling or coking at the end stop of the throttle valve can lead to incorrect adaptation values.
t  Take care not to scratch the throttle valve housing when cleaning it.
–  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 eye injuries and skin contact.
  N24-10125
–  Thoroughly clean throttle valve housing, especially around the closed throttle valve -arrows- using commercially available acetone according to DIN 53247 and a brush.
–  Clean the throat of the throttle valve with a lint free cloth.
–  Allow acetone to flash off completely and reinstall cleaned throttle valve module.
–  Erase learnt values and adapt engine control unit -J623- to throttle valve module → Vehicle diagnostic tester„Guided functions“.
  N24-10124

Injectors > < Removing and installing regulating flap control unitJ808 and throttle valve moduleJ338