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Mitsubishi
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1999
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Montero
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Repair and Diagnosis
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Engine Performance
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Engine Controls - Self-Diagnostics
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DTC P0125: Excessive Time To Enter Closed Loop Fuel Control
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Probable Cause
Probable Cause
Heated Oxygen Sensor (HO2S) failed.
Injector failed.
Fuel pressure regulator failed.
Fuel pump failed.
Fuel filter clogged.
Air intake system leak.
Exhaust system leak.
ECM failed.