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NIStune Type 1 Hardware Installation Page 19 of 19
A. Early Model ECUs
You need to solder the following wires to the HD6802 processor similar to the picture below.
The header connector you are supplied with is marked with a '1' on the left hand side.
This corresponds to the 1 on the diagram below. Solder the ends of the wires to the CPU pins below,
ensuring that there is no possibility of the wire shorting to a neighbouring pin. Hot glue over the wiring
connections afterwards to ensure they do not move. Any short circuit will stop the ECU from working and
may damage it.