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Home >> Chevrolet >> 2005 >> Chevy Express H1500, Van Passenger >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Control System - 4.3L (DTC P0601 To DTC P2A04)) >> Diagnosis >> DTC P1134 or P1154 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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The PCM detects that the difference between the HO2S rich-to-lean average transition time and the lean-to-rich average transition time is more than a calibrated value for 100 seconds.

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