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Audi
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2003
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A4 Base, 2D Convertible, 3.0 T
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Repair and Diagnosis
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Engine Performance
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System
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3.0L - Ignition/Glow Plug System, Engine Codes: AVK, BGN
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Ignition/Glow plug system
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Ignition system, checking
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Engine Control Module (ECM) power supply, checking
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Test requirements
Test requirements
Fuses for engine electronics OK
See appropriate System Wiring Diagram article.
Battery voltage at least 12.7 V
Alternator OK