Just adding a point to this thread. For a chain to last the life of an engine, the engine must receive regular oil changes thru its life. The old micra engines were known to stretch and wear their chains by 70k miles if the oil wasnt changed regularly.
i have the diesel, and not experienced the limited rev thing.... so keep on at the dealer to sort it.
My dislike with the diesel is the engine shunting when the revs drop down to 1400 revs.... diesels are meant to pull strongly at low revs, mine needs to be revving at 2000 revs minimum to feel...
I have the Diesel TEKNA Model. only mods i have done are the added bits of plastic on the valance and lower doors, and added the armrest in the centre console. i may consider a remap to smooth out and improve the low speed pull on the diesel.