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Inspecting the camshaft position sensor G163 > < Removing and installing ignition system

Octavia Mk1

Check ignition coils with power output stage
Check ignition coils with power output stage
Special tools and workshop equipment required
t  Hand multimeter (e.g. -V.A.G 1526 A-)
t  Voltage tester (e. g. -V.A.G 1527 B-)
t  Adapter cable set (e.g. -V.A.G 1594 A-)
t  Test box -V.A.G 1598/31-
t  Current flow diagram
Test conditions
l  Battery voltage at least 11 volts
l  Engine speed sender o.k., test → Chapter
   
l  The fuse 29 must be o.k.
  Note
Ignition coils and power amplifier are a common component (ignition terminal) and cannot be replaced individually.
Checking voltage supply
  S97-0319
–  Pull out the 4-pin plug from the power output stage of the ignition coils.
–  Measure the power supply between the contacts 2 + 4 of the removed plug using the multimeter and the adapter cables from -V.A.G 1594 A-.
–  Switch on ignition.
   Specified value: approx. battery voltage
–  Switch off ignition.
If no voltage is present:
–  Check the cable between 4-pin plug contact 4 and earth for interruption according to the current flow diagram.
   Cable resistance: max. 1.5 Ω
–  Check cable between 4-pin plug contact 2 and relay plate for interruption according to the current flow diagram.
   Cable resistance: max. 1.5 Ω
Test control
  WARNING
During the following test do not touch the connecting parts of the ignition coils or the test cables.
–  Unplug connectors from the fuel injection valves.
  S28-0096
–  Pull out the 4-pin plug from the power output stage of the ignition coils.
Voltage tester with adapter cables from -V.A.G 1594 A - to:
   Contacts 1 + 4 (ignition outlet 1)
   Contacts 3 + 4 (ignition outlet 2)
   of the remove plug.
–  Actuate the starter and check the ignition signal on the engine control unit.
   The LED must flash.
–  Switch off ignition.
If the LED flashes and there is a voltage existing between contact 2 and 4:
–  Replace ignition terminal → Chapter.
If the LED does not flash:
  S28-0096
–  Connect the test box -V.A.G 1598/31- to the wiring loom of the engine control unit → Chapter.
–  Check wiring between the test box and the 4-pin plug for interruption according to the Current Flow Diagram:
   Contact 1 and bush 112
   Contact 3 and bush 113
   Cable resistance: max. 1.5 Ω
–  Also check the wires for short-circuits.
   Specified value: ∞ Ω
If no fault was detected in the wiring and if there is a voltage detected between contact 2 and 4:
–  Replacing engine control unit → Chapter.
  S24-0267

Inspecting the camshaft position sensor G163 > < Removing and installing ignition system