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Chevrolet
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2003
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Tracker 2D Utility, RWD, Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System Self-Diagnostics - 2.0L
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Diagnostic Tests
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DTC P0125: ECT Excessive Time To Enter Closed Loop
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Conditions For Running DTC
Conditions For Running DTC
The HO2S 1 output is varying, indicating that the sensor is hot enough to operate properly.