Hi guys,
the problem I am facing is just what's described in the title - since I installed a VSS on my car, the fuel consumption has gone up eventhough DFCO, Decel Enlean and HyWay Lean Cruise should mean a net decrease in fuel consumption. Cruising at 75-ish, I went from 13.5mpg down to 12mpg, which is more of a difference than what I'd chalk up to chance, weather or similar...

Any ideas?