Hi there maybe some one can help me out please. I have had the same problem with my c8 along with anti pollution faults and catalytic converter faults. I have recently changed my catalytic converter and all is fine apart from this coolant temperature and stop light coming on intermittently? I have replaced the thermostat and that hasn't solved the problem so am going to try and replace the temperature sensor, but i can seem to find it? does anybody know where it is on a c8. Its the green sensor 1338A7 Many thanks Chris
