Cannot find schematic / build list for Gen 1 32 Bit USB ECU Editor Interface

[juissed]

Been searching all day-- Can someone please provide me with the schematic / build instructions for the USB ECU Editor interface cable?

I found a few of the USB RS232 TTL circuits online, but I want to be sure I purchase the correct one.

 

[sportbikeryder]

Try this. It is pretty old, but it works.