hi eddie ,we had the same problem on our ka,it was the idle control valve ,it sits right on top of the engine ,secured by a 8mm nut ,and a multi clip wiring clip,ford wanted £70.00 plus labour,i changed it in ten minites and got a second hand part from a breakers for £10.00.you can buy repair kits for them but are not worth the hassle,you will see the difference straight away ,when you leave the wire unconected the car will turn over but not start ,that way you will know your at the right component.
joe gillies
March 2007