Mitsubishi Repair: question., montero sport, sport 2000

Question
HI, MY MONTERO SPORT 2000 ALWAYS HAVE THE EANGINE LIGTH ON I HAVE DONE CHANGES IN EVERITHYNG MECHANIC HAS FOUND RUNG CENSORS AND MORE PARTS WHEN IVE DONE A CHECK WITH OBDii   TOOL A PO125 CODE COMES IN ABOUT THE ANTIFREZZE WHICH IS FULL NOW CAN'T PASS SMOGE CAN YOU HELP ME. THANK'S JACK.  

Answer
Jack: Got a AutoZone close by? Go have your car coded for free. Just to be sure what sensor is coming off as bad. I would say though that you have a coolant temperture sensor out. This sensor sits just below the thermostat in the engine. But still that coding from AutoZone would give you a better reading and then you can fix whatever is wrong with your car. Go back to your mechanic and have him change that coolant temperture sensor. Hope this helps and good luck!