engine oil AUDI A4 1998 B5 / 1.G AFC Engine Ignition System Servising Workshop Manual
Page 1 of 8
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Ignition system, servicing
1 -
Engine Control Module (ECM) -J192-
2 -
ECM signal wires
4-pin, light-brown
3 -
Power output stage -N122- For ignition coils
4 -
Ignition coil primary connections 3-pin, dark brown
5 -
Harness connector 3-pinFor Knock Sensor (KS) 2 -G66-
6 -
Camshaft Position (CMP) sensor -G40-
7 -
Engine speed (RPM) sensor -G28-
8 -
Crankshaft Position (CKP) sensor -G4-
9 -
Knock Sensor (KS) 2 -G66-
10 -
Ignition coils 1, 2 and 3; -N-, -N128- and -
N158-
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Page 2 of 8
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11 -
Knock Sensor (KS) 1 -G61-
12 -
Spark plug connector
13 -
Harness connector
3-pin, grayFor engine speed (RPM) sensor -G28-
14 -
Harness connector 3-pin, blackFor Crankshaft Position (CKP) sensor -G4-
15 -
Harness connector 3-pinFor Knock Sensor (KS) 1 -G61-
16 -
Harness connector 3-pin, white, voltage supplyFor ignition coils 1, 2 and 3, -N-, -N128-
and -N158-
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Page 6 of 8
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.
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