The Toyota Camry engine light is on. Error Code P0125

On the 1MZ alloy block V6 it is on top between the engine coolant filler cap (not the one on the radiator) and the dogbone engine steady bar.

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A code P0125 may mean that one or more of the following has happened: Insufficient warm up time Low engine coolant level Leaking or stuck open thermostat Faulty coolant temperature sensor Possible Solutions The simplest thing to do is to reset the code and see if it comes back. If the code comes back, the problem is likely going to be the result of the above causes (faulty thermostat, faulty ECT sensor, or a low coolant level

first check radiator level if it is full and the heater is working good make sure temp gauge is functioning c orrectly it is most likely the coolant temp sensor but if this is a high milage vehicle and you have owned long time and never changed i would also replace thermostat and check plug to temp sensor forr good conections and good wires

That code in any toyota don't require sensor replacement, what it is is that the thermostat is not close complete or there is a small leak somewhere in your coolant system, the computer is spectating 180 or so from the moment that yo start the car to the moment that computer knows that that temp has to be reached if that don't happen because the car is loosing its temp due to a leak or a open thermostat , the computer sets p0125 unable to reach temp for close loop.

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Was the computer reset after the thermostat was replaced?? If not, it must be reset to clear prior codes. as for the p1130/1135, they are related here is some info>>>>http://www.engine-light-help.com/toyota-engine-light.html

125 insufficient coolant temp for closed loop 1135 sensor heater circuit response bank 1 sensor 1--both can be caused by same problem code can go off for insufficient warm up -low coolant level-thermostat leaking/stuck open or faulty sensor reset code and see if problem returns code sometimes known to go off if vehicle didnt warm up before being turned off short distance drive

P0125- Engine not reaching operation temp quick enough. Possible problems:

• Insufficient warm up time
• Low engine coolant level
• Leaking or stuck open thermostat
• Faulty coolant temp sensor
• P1130- A/F Sensor Circuit Range/performance, Bank 1 Sensor 1

It seems this is a fuel problem from the description I get on my scanner for these codes. Is there any way I can get a more in depth explanation than just what shows on the scanner exp. (P0125 closed loop fuel insufficent coolant temp).Changing gas cap and plug wires solved nothing. P-0125 indicates that your thermostat is sticking open. The engine is not warming up enough to change from OPEN loop to CLOSED loop. P-0171 indicates that you have a dirty MASS AIR FLOW SENSOR. Replace the thermostat, and clean the MAF. Then clear the codes and drive it, and recheck for any codes.

P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control
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.

A code P0125 may mean that one or more of the following has happened:

• Insufficient warm up time
• Low engine coolant level
• Leaking or stuck open thermostat
• Faulty coolant temperature sensor

The simplest thing to do is to reset the code and see if it comes back.
If the code comes back, the problem is likely going to be the result of the above causes (faulty thermostat, faulty coolant sensor, or a low coolant level).

A code P0125 may mean that one or more of the following has happened insufficient warm up time, low engine coolant level, leaking or stuck open thermostat,or faulty coolant temperature sensor The simplest thing to do is to reset the code and see if it comes back.If the code comes back, the problem is likely going to be the result of a faulty thermostat, faulty coolant sensor, or a low coolant level).