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Home >> Pontiac >> 2002 >> Aztek AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics >> Diagnostic Tests >> DTC P0141: Ho2S Heater Circuit - Sensor 2 >> Conditions For Setting DTC
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Conditions For Setting DTC

HO2S 2 voltage remains within 150 mV of the bias voltage about 450 mV for a longer amount of time. The amount of time ranges between 100-130 seconds depending on ECT at start-up and average Mass Air Flow (MAF) since start-up.