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Vacuum switch in the intake manifold upper part: Checking fuel system for leaks > < Pressure regulator of the fuel and the holding pressure: check

Leon Mk2

Test intake manifold change-over function
Test intake manifold change-over function
Consult the equivalence table for tools and equipment according to applicability between Seat / VW / Audi / Skoda → Chapter
This inspection must be performed when the drive speed is insufficient. This means that the acceleration is inadequate or the vehicle reacts delayed.
Special tools and workshop equipment required
   
t  Manual vacuum pump -VAS 6213-
  W00-10259
t  Vacuum tester -V.A.G 1368-
l  The variable intake manifold change-over valve -N156- has been checked using the „guided fault finding“ of the central diagnosis -VAS 5051B-.
If the variable intake manifold change-over valve -N156- is okay, carry out the following checks:
–  Check proper connection of vacuum lines.
–  Check vacuum hoses for porosity.
–  Check vacuum system for leaks.
–  Check the tightness of the vacuum switch in the intake manifold upper part → Chapter.
  W00-0567

Vacuum switch in the intake manifold upper part: Checking fuel system for leaks > < Pressure regulator of the fuel and the holding pressure: check