Very odd problem this. if i have under half a tank of petrol and i turn sharp right, all power to the engine gradually stops! 5-7 seconds after ive straightened up the car will chug a little then carry on as normal. this ONLY happens when i turn RIGHT and have under half a tank of fuel. its been doing it for about 6 months now. Nobody ive asked has the faintest idea of what it could be.