Right I have 2008 1.9 fiat grande punto sporting I have a mostly intermittent starting issue no codes. I turn the key to start the engine and it will turn over but not start occasionally firing sometimes it stops turning over and then it'll show radiator fluid temperature to high but even when cold starting have replaced the temperature sensor on the thermostat. It's so annoying and embarrassing when in a car park sitting there trying to start engine anyone have any idea please?