I ran the Jeep around today. I thought the idle was low and a bit rough. I intended to use a vacuum gauge to see if turning the cam sensor did anything to help or hinder the idle. But first I dug out my old Snap-On MT-2500 scanner. The last module I had bought was up to 2001 so I plugged it in for a look-see. Damned if the thing listed the SYNC range and mine was "OK". No need to turn anything - just leave it alone. So as I drove it around I saw the idle improve somewhat. Oddly, it was right where the computer wanted it according to the scanner. It looks like it runs real smooth but I feel vibrations. It has new motor mounts. Maybe it is just me.