NIStune TYPE 1 V.3.5 - Manual (Page 22)

Nistune Type 1 Hardware Installation Page 22 of 33
5. USB Connector Installation (X2)
The USB-B style connector that comes with the Nistune board is recommended for install where
the diagnostic potentiometer normally sits. It is up to the owner where they wish to locate this port.
The existing bracket from the diagnostic potentiometer fits the USB connector, but requires the
hole to be drilled and filed out to fit the connector plug through. The potentiometer is normally
used for idle fine select and diagnostic indicator. The diagnostics can be retrieved from Nistune
software, so this is no longer required. The diagnostics selector will be replaced by the USB
socket
1. Firstly remove the screws under the ECU warning socket connecting the diagnostics selector
bracket.
Unscrew the potentiometer from the bracket, and either cut or desolder the wires to the
potentiometer from the ECU. Ensure that if the wires are cut, that the exposed ends are
adequately insulated.
Using a drill size slightly larger than the hole that contained the diagnostics selector, enlarge this
hole. This must be of sufficient size that the USB-B type connector cable can fit through the hole
to the socket in the ECU.
Ensure that all ECU housing debris caused by the drilling is blown away from the ECU circuitry
afterwards. Any debris that is remaining may cause short circuit to ECU components.