I blew my b18c1 engine and swapped to a b20b now I know that I need to swap the ecu and the p75 obd2b is compatible but do I need to do something with the immobilizer? Someone told me I would have to get a matching ignition for it to work can anyone give me some insight to this problem? This being said with my original ecu p72 the car would idle just find but die once gas was applied