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Injectors: Removing and installing > < Carrying out adaptation for injector delivery calibration

Leon Mk1

Checking open injectors
Checking open injectors
Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.
Special tools and workshop equipment required
   
t  Pin tool e/c 17 -V.A.G 1331/6-, see equivalent → Anchor
t  Screw plug -T40204-, see equivalent → Anchor
  WARNING
t  When carrying out work on the fuel system, always observe the guidelines for cleanliness and the instructions → Chapter.
t  Follow these instructions and rules for cleanliness before starting work and while working on the fuel system.
–  Event memory entry using the vehicle diagnosis tester.
  W00-1126
–  Remove the engine cover upwards -arrows-.
–  Clean all connections (e.g. with commercial cleaning solution) before removing.
  Note
t  Make sure all parts are clean; no dirt must be allowed to enter the fuel system.
t  Check all cylinders in turn.
–  Dry all components after cleaning.
Start with cylinder 1.
–  Unscrew union nut at fuel rail No. 1 cylinder, and also loosen union nut on injector slightly. Seal off open connection on injector line.
–  Seal off open connection using plug -T40204-.
l  The electrical connector of the relevant injector must remain connected.
–  Erase all faults in fault memory.
–  Take vehicle for a test drive.
  Note
t  The fault memory entry „positive regulation deviation“ must not be stored when the correct injector has been located.
t  Other fault messages may possibly be stored in the memory. These new event memory entries can be disregarded.
–  After road test read-out the event memory. If an event relating to „positive fuel pressure control“ is still in the event memory, repeat the above steps for all connections until the event entry is no longer indicated after the road-test.
Observe all instructions for connecting injector pipes.
–  Lubricate threads of union nuts with fuel.
–  Tighten union nuts on high-pressure lines hand-tight. Ensure that connections are not under tension.
–  Install the high-pressure pipes → Chapter.
  E10-10085

Injectors: Removing and installing > < Carrying out adaptation for injector delivery calibration