Insufficient Coolant Temperature for Closed Loop Fuel Control
Verified1 source
1 source
- Official data (NHTSA)official_feed
What P0125 means
Safe to drive short-term
The engine is not reaching operating temperature within the expected time, delaying closed-loop fuel control.
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General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.
Common causes
- Insufficient Coolant Temperature for Closed Loop Fuel Control
What to check first
- Verify thermostat opens/closes at spec temperature
- Check coolant temperature sensor readings
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