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Home >> Buick >> 2002 >> Century Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.1L Engine >> Diagnostic Tests >> DTC P1134: Ho2S Transition Time Ratio (Bank 1; Sensor 1) >> Conditions For Setting DTC
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Conditions For Setting DTC

The average transition time ratio is not within 0.4-4.2 during a 100 second monitoring period.