My engine supplier who delivered a GTi-R engine to me shipped an ECU with it. The problem is the part number on the ecu doesn't jive with what i know. This engine is an allwheel drive and will be going into an NX2000 but the part number on the ecu is 23710-50F00..... this to me is a Silvia part#. clarification would help,, the ecu part number should be 23710-54C00

The GTi-R ECU have a big red sticker that says "AC"
The PS13 ECU have a big red sticker that says "62" "60" or "65"

Hope this helps

do you know what the 60, 62, and 65 correspond to? I imagine they satnd for manual, auto, and turbo? which is which?
-dave