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Home >> Buick >> 2004 >> Century Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls (DTC P0030 To P0138) >> Engine Controls Diagnosis >> DTC P0134 >> Conditions for Setting the DTC
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Conditions for Setting the DTC

The PCM detects that the HO2S 1 signal voltage remains between 382-525 mV for more than 30 seconds.

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