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Removing and installing the fuel-high pressure pump > < Removing and installing injection valves

Octavia Mk2

Clean throttle valve control unitJ338
Clean throttle valve control unit -J338-
  Note
t  If a new engine control unit is fitted, the throttle valve control unit must be adapted. The adaptation must only be carried out with a new or cleaned throttle valve control unit, because dirt/carbon deposits in the end stop of the throttle valve can lead to incorrect adaptation values.
t  The throttle valve support must not be scratched when cleaning.
–  Remove engine cover with air filter → Chapter.
–  Remove the throttle valve control unit.
   
–  Open the throttle valve manually and block the throttle valve in the opened position with a suitable object -arrow-.
  WARNING
Acetone is easily inflammable. Please observe the accident prevention regulations and the safety instructions when handling easily inflammable fluids. Do not use compressed air when cleaning the throttle valve. Wear safety goggles and safety clothing, in order to avoid injuries and skin contact.
  N24-10125
–  Thoroughly clean the throttle valve support, in particular the area of the closed throttle valve -arrows-, with commercially available acetone and a paint brush.
–  Wipe the throttle valve support with a fluffy cloth.
–  Let the acetone dry off completely and re-install the cleaned throttle valve control unit.
–  Adapt engine control unit to the throttle valve control unit → Vehicle diagnosis, testing and information system VAS 5051.
  N24-10124

Removing and installing the fuel-high pressure pump > < Removing and installing injection valves