I don't want to be penickity, but that video describes the later Sigma engine (Duratec Ti-VCT)used from 2005. That's why its not the same mechanics as the 1.7 Puma & ST170.

However the principles of control are the same on them all, but I've not heard of anyone using anything other than a Ford PCM to control it. Honda VTEC is a little easier.

Martin