volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Test data, spark plugs > < Removing and installing ignition coils with output stage
Safety precautions
Safety precautions
To prevent injuries to persons and/or damage to the injection and ignition system, the following must be observed:
t  Do not touch or disconnect ignition cables when the engine is running or being turned at starter speed.
t  Switch off ignition before connecting or disconnecting injection or ignition system wiring as well as test instrument cables.
Note the following if testers and measuring instruments have to be used during a road test:
t  Test and measuring instruments must always be secured to rear seat and operated by a second person from this location.
If test and measuring instruments are operated from front passenger seat and the vehicle is involved in an accident, there is a possibility that the person sitting in this seat may receive serious injuries when the airbag is triggered.
t  If the engine is to be turned at starter speed without starting:
Engine codes AHW, AKQ, APE, ATN, AUS, AXP
   
–  Disconnect 4-pin connector from ignition transformer -arrow-.
  N28-0102
–  Pull connector -arrows- off all injectors.
Engine codes AZD, BCA, BCB
–  Pull all 4-pin connectors off ignition coils with final output stages → Chapter.
  N24-0736
–  Remove fuse 32.
  Note
Removing fuse 32 interrupts the voltage supply to the injectors.
  N24-0588

Test data, spark plugs > < Removing and installing ignition coils with output stage