You cannot run a 1.8l ecu on a 2.0l engine and expect it run properly. If you cannot find a 2.0l ecu you can chip a different ecu that uses the same ecu hardware with the 2.0L code and run that. I've done this, e.g. DEWY code on an 1.8L SEAL ecu in a 2.0L Mondeo. I also did this with an 1.8l ACHE ecu but I cannot remember if that is the same hardware as the other two ecu's.