I recently changed my starter motor on my 2007 mk6 Fiesta ST as the old one had failed, but after changing it, it's done something to my alarm, which isn't working, and also the doors are meant to lock after 30secs if the car isn't locked by myself, and that isn't working either. Plus the engine management light is showing up as well. If i lock the car from the inside, I can put the key in the ignition and the car starts up, shouldn't the immobiiser prevent that if it's locked? Any help would be appreciated but despite these issues, the car runs fine!