MasterTuning Fault code dictionary (DTC)

P0125 — Insufficient Coolant Temperature for Closed Loop Fuel Control

Severity: Informational Can you drive? Yes, no known limitation Make: All makes (OBD-II standard)
MeaningInsufficient Coolant Temperature for Closed Loop Fuel Control.
FamilyPowertrain (P)

Frequently asked questions

What does code P0125 mean?

Insufficient Coolant Temperature for Closed Loop Fuel Control. Insufficient Coolant Temperature for Closed Loop Fuel Control.

Can I keep driving with code P0125 active?

Yes, no known limitation

How do you fix code P0125?

Diagnosis starts from reading the live ECU parameters: the code points to the fault area, not to the part to replace. A vehicle-electronics specialist can test the component and clear the code after the repair.

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