OK.You cant use the Mondeo ECU`s.They are not meant for external EDIS. Best to do is to get a ECU from a Escort MK5 XR3i 130 PS,early models,they have external EDIS.Or try a ECU from a Mondeo MK1 with auto gearbox.
I found out this because i have 2 Escort MK5,a 1992 1.8 Zetec and a 1994 1.8 Zetec. I`ve put a Mondeo MK1 2.0 ECU in the 94 and it works,but when i fitted the same 2.0 ECU in the 92 it wouldnt start.I got a hold of a ECU from a 92 Escort 1.8 XR3i 130 PS and that worked. Later i discovered that the 92 Escort has external EDIS and tried a ECU from a Mondeo MK1 2.0 auto gearbox wich also have external EDIS,and the car started. I havent driven it yet so i dont know if it has got more power.