Reporting Knock on Ford has been confusing in the past.
Our Knock Retard parameter shows positive value to be actual knock retard, and a negative value being the PCM adding timing over what is being commanded. I made it report this way so that the default scanner config with knock retard would show properly in VCM Scanner graphs and dashboard.
Today we created a new parameter, "Knock Correction" that reports the same data as Knock Retard, but the output is scaled so that a positive value is adding timing, and a negative value is pulling timing (from knock). This new parameter will not be selected in the default configs or show on the charts unless you add it.
This change makes the global and individual cylinder modes of knock control report values the same way.
I hope this clears up any confusion.