Dual carb set ups - ?

[eight-six]

Guys,

Currently running a dual carb set up on my AE86 and need a bit of help with understanding how it works.
I haven’t played with carbs before and as a result I am not informed on how you run a carb set up on an EFI engine – so bear with me.

The car was converted to dual carbs in Japan so I don’t know exactly how it’s been done. I want to clean the engine bay up and if possible dispose of the wiring loom – or what ever part of it that isn’t needed.

The engine loom was still in place just taped up. I have found that a few wires have been cut (probably the injector feeds)

I am unsure if the ECU is still of any use? The TPS unit isn’t connected to anything, so I can’t see how the ECU would be controlling the timing? So is it safe to assume the timing is locked out and fixed?

If I pull the ECU fuse in the engine bay and the car still runs then is it safe to assume that the ECU is not need?

If people could share their views, or their set up its might shed some light on the matter. Sadly I don’t have much time to work on the car at the moment so don’t have time to investigate properly myself, so any pointers would help me along the way.

Cheers

James