I have asked this before on several threads ... please quantify these statements because in more years than I care to remember of the 350 boards, I have seen this claimed many times but have seen no evidence. I have always said that I believed it most unlikely that such a fundmental change in ECU design had been instantiated for the simple reason 'Why'?
I don't wish to contradict you, but I shall stick my neck out and say I don't believe it - sorry Chris
No worries chap, I dont have any evidence, hence the "AFAIK". Its only what I've read before, mainly on the US forums and what people have seen on dynos.
From what I've read, JDM ECUs can be reflashed, but yet no service is offered for UK models. Why would that be if they are the same? The hardware is no doubt likely to be the same, but the firmware they load onto it is likely to be different. Just like the BCM. Why does the JDM model offer folding mirrors on locking, yet no one can get it to work on UK? There are fundermental differences in the UK and JDM models, just no one truely knows what these are other than Nissan themselves.