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Insufficient Coolant Temperature for Closed Loop Fuel Control

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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

  1. Verify thermostat opens/closes at spec temperature
  2. Check coolant temperature sensor readings
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