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Audi
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2004
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TT Quattro Roadster (8N9) L4-1.8L Turbo (BEA)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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Engine Control System
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DTC 17939
DTC 17939
DTC P1501 - P1531:
