I've collected all the major parts to fit the 225 engine into my clio, I'm just wondering if anyone has a definitive idea of which megane ecus work with the conversion? I'm aware the megane ecu will need the immobiliser swapped from my clio one, and I can have this done for £70, I just need to know if my '05 ecu will work or if I'll need another megane ecu. Cheers