Yes i am indeed very much out there, and very much still doing what i do to help the Land Rover community as best i can, as per usual :lol:
However please forgive me if it takes me a while to respond to a specific question for me here, although this was once the only forum i frequented, times have changed and i now contribute my time and the sharing my knowledge and experience on over a dozen other forums now.
Our sync mate is really simple to understand in terms of what it does.
In the case of either Diesel EDC or 1999 Petrol Motronics, it wakes up the respective engine management ECU and gets its unique and specific to each ECU, mobilization code, It then wakes up the BeCM and stores that code in it, thus re synchronizing the BeCM to the engine management and allowing the vehicle to start. These codes are fixed. Ie i could have 2 Motronic ECU's and write their respective start / immobilization codes on them with a felt pen.
Our understanding and experience being that the BeCM has a well known habit of periodically forgetting their programmed Mobilisation code.
With over 500 Sync mates sold to date, i am guessing that our understanding and experience is not entirely without merit and that our willingness to provide such a low cost fix for this has helped P38 owners significantly.
Technically the GEMS immobilization works a bit differently. In this case it does not matter exactly what code the BeCM has and transmits. And i guess that at production time a code is chosen entirely at random.
However the GEMS must be taught to accept the code transmitted by the BeCM and as such it does have a "Learn mode". I can therefore learn two GEMS EMS ECU's to suit a given vehicle / BeCM.
It is possible that GEMS vehicles might also be affected, although we are not sure that this is so and we have asked for feedback as to if we should also provide a GEMS sync mate, but the jury is still out.
If you want a GEMS sync mate, let me know and i will happily knock one up.
warmest regards to all,