Here's Dave's thread on the subject
http://www.talkmorgan.com/ubbthreads.php/topics/539514/1There is an issue with later Plus 4's. Try taking the key out of the ignition then rub the fob against the ignition barrel. This is usually sufficient to get the chip close enough to the induction loop to disable the immobiliser. Once the light goes out you have 30 seconds to insert the key and start the car.
