Difference Between S2 R33 Rb25det Mt Ecus

[PeNT]

Hi Guys,

What the different between the manual pre-1996/06 and 1996/06 onwards models.

I read somewhere that they run different computers ?

23710-13U00 RB25DET S2 Manual 1996-01 to 1996-06

23710-13U01 RB25DET S2 Manual 1996-06 on

Is there a difference in the fuel/timing ? Can a post 1996/06 ecu be used in an earlier series 2 model ?

thanks

[silversr33]

Hmm aren't new models/series usually built from june onwards tho? like coinciding with financial year, did they really introduce S2 in january?