rowen--- check out series1- misfire in tech q&a, i forgot to mention what else mine was doing, the cold start valve is nackered but i dont think its related- when i go to my car when its sat ie morning or evening to go home, i put the ignition on and the fuel pump is silent. i crank and it starts and runs for 3- 5 seconds and dies, even though im on the throttle. i then turn ignition on again and the pumps away. it then starts and runs fine. it was the ballyst resistor.i know its not the same but might be worth a try, im sure some1 will tell me if its not!