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2003
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LeSabre Custom, 4T65E/M15
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Repair and Diagnosis
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Engine Performance
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Engine Control System Self-Diagnostics - 3.8L
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Diagnostic Tests
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DTC P0140: Ho2S Circuit Insufficient Activity - Sensor 2
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Conditions For Setting DTC
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Conditions For Setting DTC
The PCM detects that the HO2S 2 signal voltage remains between 412-490 mV for more than 90 seconds.