Trouble code P0125 means:Insufficent coolant temperature for closed loop fuel control
Check the fuel pressure. Check the computer codes for possible sensor issues. It is possible that a sensor is sending wrong info to the computer.
To reset the computer disconnect the battery for several minutes then reconnect.If the check engine light is off after reconnect then your computer has been reset.
Get the computer scanned to see what the problem is.
You will need to get the car computer scanned. This has to be done with a scan tool.
The check engine light comes on when the computer detects a problem and sets a code. You need to have it diagnosed with a scan tool.
The light comes on when the computer senses a problem. You have to check what code is stored in the computer and go from there. Some auto parts stores will check the code free for you.
Check the car computer for error codes, google them.
I have a 1999 Nissan maxmia, the check engine light came on and i went to get a check on it and the computer said, bad or weak o2 sensor, i was wonder where i was s it located at. how long do i have to ride on it
There could always be a fault in the computer itself.
disconnect the negative battery cable for about a minute, this should reset the check engine light
is the computer setting a code or check engine light, if not it could be your crank sensor.
You look for the little plug where you connect the OBD2 code scanner, then you read the computer code to find out what's wrong. The "check engine" light indicates that the computer has a "code" to tell you, meaning that the computer has detected a fault. The computer is trying to do the work for you, you just need to read the code.