Cheers for the help mate, I'll let you kno how I get on, I'll start with the cold start valve and look into the metering head, I know there is presure to the cold start valve tho so this made me think it must be the cold start or the fuel ecu or something, it really is a pain, got loads of money in the car, and can't even drive it as it's no fun worrying if it will start after been parked up, I'll keep you all informed anyway, cheers