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P0125 Mitsubishi

P0125 Mitsubishi - Insufficient Coolant Temperature for Closed Loop Fuel Control

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P0125 Mitsubishi Comments |  Add Comment
Possible causes
- Low engine coolant level
- Leaking or stuck open thermostat
- Faulty Engine Coolant Temperature (ECT) sensor
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor electrical circuit poor connection
Help with Possible causes What does this mean?
When is the code detected?
The voltage sent to Engine Control Module (ECM) from the Engine Coolant Temperature (ECT) sensor is not practical, even when some time has passed after starting the engine. The engine is taking too long to reach the normal temperature level.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0125 Mitsubishi Description

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

MITSUBISHI Technical Service Bulletins for P0125 code
2001 MITSUBISHI GALANT Engine And Engine Cooling Details
2001 MITSUBISHI MONTERO Engine And Engine Cooling Details
2002 MITSUBISHI GALANT Engine And Engine Cooling Details
2003 MITSUBISHI GALANT Engine And Engine Cooling Details
2004 MITSUBISHI GALANT Engine And Engine Cooling Details
2001 MITSUBISHI GALANT 060000 Engine And Engine Cooling Details
2001 MITSUBISHI MONTERO 060000 Engine And Engine Cooling Details
2002 MITSUBISHI GALANT 060000 Engine And Engine Cooling Details
2003 MITSUBISHI GALANT 060000 Engine And Engine Cooling Details
2004 MITSUBISHI GALANT 060000 Engine And Engine Cooling Details
More Bulletins Help with Technical Service Bulletins What does this mean?
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