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Acura
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2009
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TSX Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Advanced Diagnostics
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DTC P1683: Throttle Valve Default Position Spring Performance Problem
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Driving Pattern
Driving Pattern
Start the engine. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in neutral) until the radiator fan comes on.
Turn the ignition switch to LOCK (0).
Turn the ignition switch to ON (II).