I had a blocked Thermal stat so i took it out, bought a new one and plugged it all back in and the car is running perfect again. Temp is where its ment to be, car's inside heater's are spot on. Drive it for about 10 - 15 minute's and the engine management light came on. I parked it up, locked it and left it for around half an hour. Come back to start it up and the light is still on?! Anyone know why this might be?