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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (Engine Control System Self-Diagnostics - 3.8L) >> Diagnostic Tests >> DTC P0141: Ho2S 2 Heater Performance - Sensor 2 (Regal) >> Conditions For Setting DTC

Conditions For Setting DTC

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DTC sets when HO2S 2 voltage remains within 150 millivolts of the bias voltage of approximately 450 millivolts for a longer time than necessary. The amount of time ranges between 95-130 seconds, depending on the ECT at start-up and the average air flow since start-up.

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