JeffTT : Ok so it's possible if i understand correctly ? but we lose only odb2 connection..
Noz : thanks for information, but i live in france :)
The 300zx 1996 that i want to is already upgraded with ASH chip (ECU was sent to USA for upgrade)
And i would like to in the furtur remap for using ethanol (e85)...
Sorry for my english
JC