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Home >> Buick >> 2004 >> Century Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls (DTC P0140 To P0496) >> Engine Controls Diagnosis >> DTC P0141 >> Conditions for Setting the DTC

Conditions for Setting the DTC

The PCM detects that the HO2S 2 voltage remains within 74 mV of the bias voltage, about 450 mV, for a longer amount of time than necessary. The amount of time ranges between 100-130 seconds depending on ECT at startup, and the average mass air flow (MAF) since startup.