Youn wont technically need/able to use the MAp sensor as with ITBs you want to map with Alpha-N (unless you plan on having a big plenum chamber)

othewise as per JesseTs post:

Coolant
Air Temp (you will need to add this sensor as standard it is part of the AFM)
TPS
Crank

If you use our V4 you wont need EDIS modules or anything like that as ours as coil drivers built in. Also, it supports all the standard Ford sensors, so the only additional you will need is air temp, which we can supply if needed for about £12.

The V4 also has a tacho output etc so your dash will still work, and programmable fan output (the fan is ecu controlled on the focus, unline fezzies, RSTs etc that use a stat switch)

We also have an array of basemaps for the Zetec. Are you running jenvies or GSXR itbs?

Matt