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Volkswagen
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2000
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GTI (1J1) L4-2.0L (AEG)
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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 17729
DTC 17729
P1521/VAG 17729
= Knock Sensor Circuit Low Input.
Knock Sensors, Checking