Can Someone help please

Iv got the Whole interior Loom, and Engine Loom Which Is EFI

I was told it was a RS Turbo fiesta loom...
But... It was running on a 1.6 CVH EFI engine ( none turbo )

But the engine had been converted from MFI to EFI and everythink changed

I Looked at the ECU and noticed it wernt OFAB or OFAC

Just wounderin.. on the EFI Loom

If its been runnin say None turbo.. Can the Fiesta RST Loom run None turbo? With a diff ECU ( i.e Non turbo )

And Is it just a matter of Finding a OFAB or OFAC ECU and PLuggin it into my Current EFI Loom and i can run it on my Turbo engine?

If i knew what car the loom come out of i would of told you.. but the car was a conversion, and they put the whole loom in when they did the conversion. soo not much help there.. I was told it was a Fiesta RS turbo loom..

but im unsure if its now just a mean of Pluggin the OFAB or OFAC Ecu into it and away i go??

Help please!!