Originally Posted by onehundred80
What symptoms did you have if any, that made you replace the EGR valve?
I had no (real) symptoms. I took the car to the stealer for an oil change. I mentioned it had stalled on me a few times and threw a CEL. Turned out it was the CPS and they also said I needed a new EGR ... all for the low low price of $998.00. That's how I stumbled upon the forum (while looking for parts).
I'd still be interested in what that cap is