Thanks for the suggestion Tone

However, I have an update.

I was on my way to work this AM when I first noticed this happening. Half way through the day I decided to go get a coffee. When I got in the VX and started it up, the idle was much worse and this is when the check engine light actually came on. I cleared the code with the scan gauge but the idle was still rough after several start ups and shut downs (x3) and no code thrown or check engine light. Worried, I shut it down and came back in to the office.

Not knowing what to do, I searched here for the code after checking the scan gauge, then went on line for more details seeing as not much came up for the code here. While waiting for a response to this thread and thinking about the possibility of the problem being caused by carbon build up in the EGR, I decided to try an old trick that used to work on my ex girl friends old 75 Buick Apollo (don't laugh!).

So I go outside, grab a screw driver from the glove box, open the hood and start looking around the EGR valve. I decided to first disconnect and reconnect plug going in to the top of the EGR. I then used the screw driver and started tapping (lightly) on the EGR and all pipes leading to it. I then got in the VX, started it up and the idle was perfect, no check engine light and all seemed OK.

I went ahead and grabbed a coffee, came back to work and all is well now. I don't suspect this resolved the problem entirely but it seems to be working fine for right now. That rough idle was killing me, and I really didn't want to drive it because I'm sure an idle like that can't be good for something!

I need to take the VX in to have the 75,000 mile service done soon so I'll make sure they look in to the EGR's condition at that time

But for now, all is well and is something to try if this happens to you some day