checking oil AUDI A3 1995 8L / 1.G ATW Engine Ignition System Workshop Manual

28-4


Ignition coils with power output stages,
checking

Special tools and equipment

VAG1526A
VAG1527B
VAG1594A
VAG1598/31
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- Perform following tests marked with dots:

Checking activation of power output stages
Note:
Fuel must not be injected during the test to avoid damaging catalytic
converter. Connectors must therefore be disconnected from fuel injectors.
Check wire connection from 3-socket relay carrier, position 2, terminal
6 to harness connector at ignition coil terminal 1. Check motronic Engine Control Module (ECM) power supply relay -
J271- Page 28
-13
.
- Remove all harness connectors to injectors.
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Evaluation display group 014, display field 3 and display group 015 and 016, display fields 1, 2 and 3. Display field:
3
Possible cause
Corrective action
Larger than 0

spark plug faulty
spark plug connector faulty
Ignition coil or power output stage
faulty - Check spark plugs and ignition wires with connector
- Ignition coils with power output stages. Checking Page
28
-4


Fuel injector faulty- Check fuel injectors Page 24
-38
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