Peugeot 207,2009,1.4 Petrol 16v ( Mini engine) 89000 miles,I've got an intermittent fault,it's like fuel starvation,starts an run until upto temp then now and again when you accelerate it like chugs,it seems to ease if you take foot off throttle and put it down again and never from cold only when warm. I've had it plugged in and there's nothing showing on diagnostics and there's no lights on the dash. I've changed the plugs. Any ideas or similar probs been found by anyone????