the self idle learn takes 30 minutes approx
there is no signal or notice of when its finished, u just have to let it idle unforuntately
try doing it again but skip the aircon part and just let it idle. then once done power it off, back on ensure idle is stable.
then try and turn on the aircon see how that goes
the a-lsd issues with the PFC only appies to the GTST with the active lsd fitted factory
as the gtst PFC does not relay the TPS signal to the a-lsd puter in the boot, you wont have this issue on your GTR