little help

red99pony · 11-27-2012, 05:40 PM

my 02 lightning is throwing obd2 code p0125 Insufficient Coolant Temperature for Closed Loop Fuel Control. I changed the thermostat for a new one still throws the same code. from what i have read it is either and ECT sensor (engine coolant temp) or CHT (Cylinder head temp sensor). my gauge shows that the temperature is fine so i think i need to change whichever sensor doesn't control the gauge since it reads correctly. does anyone know which sensor controls the gauge or has anyone came across this before?

thanks

11-27-2012, 05:40 PM	#1
red99pony Senior Member Join Date: Jul 2009 Location: goose creek sc Posts: 818	little help my 02 lightning is throwing obd2 code p0125 Insufficient Coolant Temperature for Closed Loop Fuel Control. I changed the thermostat for a new one still throws the same code. from what i have read it is either and ECT sensor (engine coolant temp) or CHT (Cylinder head temp sensor). my gauge shows that the temperature is fine so i think i need to change whichever sensor doesn't control the gauge since it reads correctly. does anyone know which sensor controls the gauge or has anyone came across this before? thanks __________________ 02 lightning all stock 99 mustang gt Tork Tech terminator kit making a little boost