NIStune TYPE 1 V.3.5 - Manual (Page 7)

Nistune Type 1 Hardware Installation Page 7 of 33
A. 1984-1985 Dual Board - Dual ROM ECUs
Vehicles: Early Z31 300ZX and E12 Nissan Exa.
This is a multiboard ECU with a 1K and 8K ROM chip. The two chips need to be removed and
jumpers changed on the board before the Nistune board can be installed.
The ROM images must be read using a special adaptor plugged into an EPROM programmer.
These are then combined into a 16K image and converted into a Nistune ENT file for
programming the board.