The engine can be ticking over on the drive or just been thrashed and the water temp is around or over 170*F and is still ticking over nicely..... Switch off and try to restart.... no joy, even though the laptop shows the inputs to the Emerald are all happy.... Fuel pressure is good and spark @ the plugs is good. Once the engine cools a little then we're off again... Any ideas? Fuel temp due to recirculation?