I don't understand a word of that about Ecu, lol, presume it's something about plug types.
Take this speedpack, get a length or wire with either male or female spade connectors at each end.
Connect one end to pin 1 and the other to pin 5.
Pins are normally numbered from top left to bottom right - be careful which way you look at it.
Pin 1 on a connector (far left) plugs in to mate up with the pin on the far right.