Original ECU for relays, standalone for signals?

[TBT]

Hi,

Im installing an EMU and in the process i want to leave the orginal ECU to handle relays, such as power for injectors, coils and 5v for hall sensor.

Then I only have to wire in signal to injectors, signal to coils and signal from hall sensor.

Is this ok?

Thanks.

[RHD]

-yes.