I don’t mean to take this thread off topic but since Roverlike posted the following;
”in case of second half of 2003 onwards MGTF is equipped with Pektron BCU. That unit is paired with engine ECU or Engine Management System. Remote fobs are paired with BCU. All of that can be done woth PScan. However do not forget you need barcode with remote fob if you want to pair it with Pektron
BCU”
I presume the link to the ECU is to cut the power supply or earth so the engine won’t start?
If so could you retain the immobiliser with an aftermarket ECU?
 

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