My 1999 1.4 spot will run for a second or 2 then cuts out I have bin told its the immobiliser and the best way to solve this is to get the ignition key/immobiliser box and ECU all from the same car and with the same Item no will this work and must it have the same item numbers as i can find lots of all 3 items all from the same car but no the same item number please help