fuel AUDI A4 1997 B5 / 1.G AFC Engine Ignition System Servising Workshop Manual

28-10
Technical data

Engine code
AFC
Idle RPM1)

NOT adjustable; regulated by Idle Speed
Control (ISC) 650 to 750 RPM
Engine speed limiting (upper limit)
By switching off fuel injectors 6200 RPM
Firing order 1 - 4 - 3 - 6 - 2 - 5
Spark plugs Tightening torque 30 Nm (22 ft lb)
Part No. 101 000 033 AA
Manufacturer code BKUR 6 ET - 10
Electrode gap 0.9 to 1.1 mm
(0.035 to 0.041 in.)
Replacement
interval Every 37,000 miles or every 3 years (whichever
occurs first)
1) Idle speed page 24
-16
.
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28-11

Safety measures


WARNING!

Be alert when working on or near the engine.
High ignition secondary voltage can cause
serious personal injury and damage vehicle
components.

DO NOT touch or disconnect ignition system
wires when the engine is running or being
cranked at starting RPM.
DO NOT operate the starter if the fuel
injectors have been removed.

Be sure the ignition is switched OFF, when:
Disconnecting ignition wires
Disconnecting fuel injection system wiring
Connecting or disconnecting test equipment
leads
Disconnecting the battery
Washing the engine or engine
compartment.
Pa
ge 5 of 8 I
gnition s
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11/22/2002 htt
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BEFORE cranking the engine at starting RPM
(such as for compression testing) disable the
ignition and fuel injection systems:

Disconnect the ignition coil power output
stage.
Disconnect harness connectors from all six
fuel injectors.
After the work is completed, erase
Diagnostic Trouble Code (DTC) memory.
Pa
ge 6 of 8 I
gnition s
ystem, servicin
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.28.2