m2r injector selector

ok i have the m2r on my 13bt and was just wondering what exactly is the leading and trailing injector selection, ie which wires are used for primary 1 and primary 2 and secondary 1 and secondary two, as i have no access to a wiring diagram purely for rotaries, as it only has a m4 setup for piston motors?
wire number 2 and 3 and wire number 14 and 15 on the m4 loom what are they for as in their primary and secondary numbers or doesn't that work like in a factory setup and they just all fire in a group setup
Thanks in advance
Im about to fire it up so there will be a few little other things id like too ask
Its a ida style throttle too with 4 bosch 1600 blues, so i really dont have a pri and secondary spot in the manifolds anymore
wire number 2 and 3 and wire number 14 and 15 on the m4 loom what are they for as in their primary and secondary numbers or doesn't that work like in a factory setup and they just all fire in a group setup
Thanks in advance
Im about to fire it up so there will be a few little other things id like too ask

Its a ida style throttle too with 4 bosch 1600 blues, so i really dont have a pri and secondary spot in the manifolds anymore
