Hi all can someone help on an ECU change, I've got two passats one being a 2001 5.5 1.9 TDI sport with a remap, and the other an early 2002 5.5 TDI sport with a standard ECU, I'm putting the engine from the 2001 into the 2002 and i want to also put the remapped ECU in to the 2002 passat, there is talk on here about the ECU will have to be reprogrammed because of the immobilizer, but someone also says he changed his with just a straight swap and everything was ok, if I swap the ECU and get problems with this coding business can i get around it with changing other stuff like the ignition barrel and the instrument cluster and door locks, would there be anything else I'd need to do or change to sort this out, thanks to everyone in advance, Rob