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Home >> Chevrolet >> 2004 >> Optra5 Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 1.4L DOHC - DTC P0107 To DTC P0335 >> DTC P0133 >> Conditions for Setting the DTC

Conditions for Setting the DTC

The ECM detects that the HO2S 1 rich-to-lean average response time is less than 90 milliseconds or lean-to-rich average response time is more than 125 milliseconds.

Or

The ECM detects that the HO2S 1 rich-to-lean or lean-to-rich switches are less than 10.

Or

The ECM detects that the HO2S 1 signal spends twice the amount of time in the rich region as compared to the lean region or the HO2S 1 signal spends twice the amount of time in the lean region as compared to the rich region.

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