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Home >> Buick >> 2003 >> Regal LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P1134: Ho2S Transition Time Ratio - Sensor 1 >> Conditions For Setting DTC

Conditions For Setting DTC

The PCM detects that the average transition time ratio is not within 0.4-4.0 during a 100 second monitoring period.