How are 350z ecus arranged? Are all 2003 models the same and 2004 models the same? Or do they actually differentiate between different models?

Even a link to ecu part numbers would be appreciated. I am trying to do the technosquare reflash and want to send one from another car. Thanks.

 

I understand there are different programs and flashes between the 03 ecu's and 04 ecu's. Techosquare is still working on perfecting the 04 program as we speak. I am running a 03 350Z 6 speed ecu in my 03 G35 6 speed sedan. ECU pin locations are identical even though the wiring colors are different between the 2 cars.The g35 coupe's however have a different pin layout so will not hook up.

 

g356gear,
So the Z ECU and G35 6mt Sedan ECU are plug and play? ... besides the imobilizer function of course.