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Home >> Chevrolet >> 2005 >> Aveo Base, 4D Hatchback >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - 1.6L (L91) - DTC P0106 To DTC P0172 >> Diagnosis >> 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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