When wiring for sequential fuel injection, fuel injectors should be wired with inj1 output to cylinder 1, inj2 output to cylinder 2 and so on. The injectors firing sequence will be set in the software via the firing order found on the advanced tab of the main setup page. If semi-sequential injection mode is used the injection sequence will always be Inj1, inj2, inj3 inj4 etc, regardless of the firing order set in the software.

Example wiring of 8 cylinder engine for sequential injection