Motor pinking possible cause?

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bigfatmat1, Dec 12, 7:20am
with a scan tool each cylinder will adjust individually.

bigfatmat1, Dec 12, 10:25am
also ignition timing won't be out one as there is no distributor. As well as a individual coil on each cylinder.

nzmax, Oct 10, 3:43pm
The Nissan Micra mentioned by OP is New Zealand new (March is import version), so the fuel types available in Japan have little bearing in this case, as Nissan NZ will have recommended the most suitable locally available fuel to use, which will be stated in the warranty booklet that came with the car, most likely Premium 95, though Regular 91 was the recommended fuel in the previous model Micra.