I have posted on there but with no joy

everybody says clean the iscv and i did that with no joy

if i remove the plug from it the engine still runs which im told is an air leak, is the the route of my problem? i sprayed lighter gas around all the pipes when engine running but didnt find the leak

this has been going on for a while now and im starting to loose faith in the car

i also am getting about 30miles to £10 of fuel and im driving like im 80 years old a smell of fumes is also recently been noticed

what the hell is wrong with it?

stressed Chris