Hello there,

I am thinking about buying a chipped ECU from a friend for a MK 5 Fiesta Zetec S but my key will not work with his ECU, am I right in saying?. He is breaking the car so he is able to give me the key aswell. I am just wondering what work has to be done once I have the ECU and key, is it possible to swap the chips in the keys in any way?

Thanks