If it is not something silly, and you have done the resets, and it is not something that has previously been suggested then I think that you may have a faulty throttle position sensor which is integral to the TB.
I would suggest that you get the resets done on Consult 3 from a friendly Nissan or indy garage and get them to check out the TB.
If it is the TPS in the TB then I have plenty preowned in stock if required.
Alex.