My name is Rickie Manuel. I am an automech in NC. Ive been having trouble with a 2002 jetta. Started out with no start. Had no check engine light and no communications with ecm. I put in a used ecm and now i'm trying to get the car running now. I have ross-tech program. I have been having trouble finding clear instructions on what i need to do to get ecm matched up to the car and the immobilizer functioning. any help will be appreciated.