Injector outputs can be used as general purpose low-side outputs (3.5A capacity) but in general they will be used for the fuel injectors. You can assign the chosen injector channel to the selected injector pin from within the Output Settings dialogue. (This is available on the IO Setup tab when using a default layout in MEITE, or under the System node in the entity tree.)


You will need to know the flow rate of your injectors in cc/min (and at what pressure), which you would then enter into the Injection Driver settings so the ECU can accurately compute the fuel amount.


In terms of injector sizing, as a general rule of thumb, if you have 4 cylinders and one injector per cylinder, and you want around 300bhp, aim for around 700cc/min flow rate. If you want 600bhp, you would aim for 1400cc, and so on.


Also, the ECU provides an Injector Dead time compensation table which will drive the injectors for longer as battery voltage drops - for example during cranking.


For information on wiring your injectors please see here.