I had the EGR code a few years ago and, yep, the problem was the VSV. I offer my experience for someone who tackles this for the first time.
My original VSV is safely in its place!! It's not connected to anything
but it's still there.
For those with 4wd who tackle this, you might find it impossible to get the old VSV (I tried for hours, yes, took the wheel off, blah, blah, blah) and just couldn't get to it. I managed to get the vacuum lines and electric connector off, then DOH!!, there's nothing magical about where they originally mounted it (just about the worst location possible). I found an unused bolt hole on the back of the motor at a much more convenient location, mounted the new one there (need the right size metric bolt), and hooked it all up.