I think it can do 8 injectors
and it can do 4 coils... but not sure if it do both at the same time

Tabetha will know.. as pin 17 of ecu is - injector driver5/ ignition driver 4

so it seems some of the wires might 'clash' lol

EDIT: just noticed you can configure other ecu pins for things.. so yeah should be able to do both.