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Exhaust system > < Removing and installing engine speed senderG28

Fabia Mk2

Removing and installing engine control unitJ623
Removing and installing engine control unit -J623-
  Note
If the engine control unit must be replaced, connect → Vehicle diagnostic tester and perform the function „replace engine control unit“.
Special tools and workshop equipment required
t  Body saw e.g. -V.A.G 1523 A-
Removing
–  Switch off ignition.
–  Remove the air filter housing → Chapter.
   
–  Press clips -arrows- outwards and pull the engine control unit out sideways.
For vehicles with protective cover
–  Cut with body saw a slot for the cross-head screwdriver in the heads of the pull-off screws.
  Note
  S24-0373
It must be sawed twice with the body saw, so that the slot is wide enough, in order to be able to unscrew the screws with a suitable screwdriver.
–  Screw out the screws.
–  Remove protective cover of control unit.
For all vehicles
–  Release plug locks and unplug plug connector from engine control unit -J623-.
Install
Installation occurs in reverse order.
Connect both plugs and lock.
For vehicles with protective cover
–  Insert protective cover and fix with new pull-off screws at engine control unit.
–  Tighten pull-off screws evenly until the screw heads are pulled off.
For all vehicles
Insert the control unit into the pressure retaining clips on the body.
Vehicles with diesel particle filter
  Note
After replacing the engine control unit -J623-, the initialisation values of the exhaust gas pressure sensor 1 -G450- must be reset → Vehicle diagnostic tester.
Continued for all vehicles
–  When replacing the control unit, adapt the engine control unit → Vehicle diagnostic tester.
–  Interrogate the fault memory again → Vehicle diagnostic tester.
  Note
After deleting the fault memory of the engine control unit the readiness code must be re-generated.
  S24-0705

Exhaust system > < Removing and installing engine speed senderG28