well i know its not a fuel leak. i fill up with £15 worth which comes up on the gauge at half a tank. i have just taken some pictures so it makes it easy understanding.
The yellow bit is a piece of sponge which is cable tied round the idle air control valve

and this is the inlet manifold that is on my car


what would you recommend me doing changing the complete inlet manifold if so where or does anyone have the inlet manifold and an airbox thanks for your help greatly appreciated.