What does code P0125 mean?
The engine does not reach the required temperature to enter closed loop fuel control.
OBD-II Code
P0125 — Insufficient Coolant Temperature for Closed Loop Fuel Control
The engine does not reach the required temperature to enter closed loop fuel control.
Common symptoms
- High fuel consumption
- rich mixture
- poor cold performance
Possible causes
- Stuck open thermostat
- low coolant level
- failing ECT sensor
Initial recommendation
Check coolant level, replace thermostat if necessary.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0125 with your vehicle's actual symptoms for more complete diagnostic guidance.
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