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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Controls Diagnosis 3.8L (DTC P0138 To P0453)) >> Diagnosis >> DTC P0140 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2004 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

The PCM detects that the HO2S 2 signal voltage remains between 390-520 mV for more than 100 seconds.

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