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Home › Mitsubishi › 1999 › Montero › Repair and Diagnosis › Engine Performance › System › Engine Controls - Self-Diagnostics › Diagnostic Tests › DTC P0125: Excessive Time To Enter Closed Loop Fuel Control › 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.