Its a 1.6 focus on a Y plate its got full exhurst systerm and sports decat k&n filter and it keeps hunting as well as when u stop at a juntion the revs dnt cum bk down strat away iv already look at the pcv which a pipe had carlaps iv also had the iscv off and clean it and a new idel control put on now im lost wot to do even ford dnt no they just want me to keep buying stuff which is not fixing it im gettimg the hump with it now and think of giving up on it I dnt no any think about fixing cars so its doing my head in