Why not stock ECU, some FTO came with plastic case that can be mapped and its far better than after market computer, it give You knock sensor and its tunable on the road by simple 150e cable and free software.
Thats what i have on my 1.3 turbo FTO, 0.7bar, tuned on stock plastic case from 1.3 Colt, stock engine internals, stock headgasket, why should You waste pile of money for some viptec stuff when Your oem ECU can do better job
I would rip it out and install plastic case OEM ECU, then You get the obd2 diagnostic back on, Your ecu can control the engine as it should, for example step motor that you have problems with atm...