A4 Cabriolet L4-1.8L Turbo (AMB) (2005)
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Check for open circuit, short to positive or short to ground in following wiring connections:
Connector
Test box V.A.G 1598/31
terminal
Socket
3 (cyl. 1)
102
3 (cyl. 2)
95
3 (cyl. 3)
103
3 (cyl. 4)
94
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Repair any open/short circuit as necessary.
If no wiring malfunctions are found:
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Replace common component ignition coil with power output stage.