What does insufficient coolant temperature mean?
This means that the engine coolant temperature (ECT) sensor indicates that the engine has not reached the required temperature level to enter closed-loop operation within a specified amount of time after starting the engine.
What is closed loop fueling?
In a nutshell, closed loop is where the engine operates with a feedback loop. A sensor closes the loop. The sensor in question is a lambda sensor, also known as an oxygen sensor or air/fuel ratio mixture sensor. In closed loop mode, the engine listens to the lambda sensor to adjust fuel/air mixture.
Is it OK to drive with P0128?
You may drive your vehicle with a P0128 trouble code. You will not notice any issue except for maybe the temperature gauge never reaching normal levels, and possibly the Check Engine light being illuminated.
Where does the p0125 code come from on a Toyota?
SPECIAL NOTE: For some Toyota models, the P0125 code is set by the front O2 sensor. The service bulletin recommends replacing the O2 sensors to fix the problem.
What does the ECT mean on a Lexus p0125?
The ECT is 0u0002C (32u0002F) at engine start. After 5 minutes running time, the ECT sensor still indicates that the engine is not warm enough to begin active feedback control of the air-fuel ratio. The ECM interprets this as a fault in the sensor or cooling system and sets a DTC.
What causes the p0125 code to set when coolant is low?
If the coolant is low, it will cause the code to set. If the coolant is low, then you likely have a leak; a coolant pressure test needs to be performed if the coolant is low. Using the infrared thermometer, a scan tool, and a visual inspection from a qualified technician will help solve your P0125 code and prevent further issues.
What does the ECT sensor mean on a Toyota?
After 5 minutes running time, the ECT sensor still indicates that the engine is not warm enough to begin active feedback control of the air-fuel ratio. The ECM interprets this as a fault in the sensor or cooling system and sets a DTC. P0125 TOYOTA Possible Symptoms Engine Light ON (or Service Engine Soon Warning Light) P0125 TOYOTA Meaning