Check Engine light is flashing - second time this has happened on a cold morning. Go on normal journey, after around 15 mins car starts to chugg and lose power then the light comes on (flashing). Car feels as though its going to die on me till I get it to a standstill. Temp on Dashboard is fine but it feels like there's a lot of heat under the bonnet and a slight smell of burning?? Engine coolant etc is fine. Later on in the day car will start fine, light will stay for a while - solid, not flashing - then will go off again?