BEFORE cranking the engine at starting RPM
(such as compression testing) disable the
fuel injection and ignition systems:
Disconnect the ignition coil power output
stage.
Disconnect harness connectors from all fuel
injectors.
After the work is completed, erase
Diagnostic Trouble Code (DTC) memory.
Pa
ge 2 of 8 Fuel su
pp
ly system, servicin
g guidelines
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.1
20-3
CAUTION!
BEFORE disconnecting the battery:
Stop the engine.
Be sure the ignition is switched off (also
applies when connecting the battery). Failure
to do so may damage the Engine Control
Module (ECM).
Be sure of the proper radio code (for vehicles
equipped with coded anti-theft radio)
Be sure the battery negative (-) cable is
disconnected, when:
Working on the electrical system.
Resistance (spot) welding or electric arc-
welding anywhere on the vehicle.
When connecting and disconnecting
electrical test equipment (LED voltage tester,
multimeter, etc.)
Be sure the ignition is switched off.
Use correct adapters from VW 1594
Pa
ge 4 of 8 Fuel su
pp
ly system, servicin
g guidelines
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.1
