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Home >> Buick >> 2003 >> Century Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 3.1L Engine >> Diagnostic Tests >> DTC P0133: Ho2S 1 - Slow Response >> Conditions For Setting DTC
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Conditions For Setting DTC

The PCM detects that the HO2S 1 rich-to-lean transition time takes longer than 105 milliseconds or the PCM detects that the HO2S 1 lean-to-rich transition time takes longer than 95 milliseconds.