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Buick
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2003
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Century Base
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls Self-Diagnostics - 3.1L Engine
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Diagnostic Tests
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P0130: Ho2S 1 Circuit Closed Loop Performance
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Conditions For Setting DTC
Conditions For Setting DTC
The PCM detects an active HO2S 1 with an improper voltage signal amplitude.