First, I would verify both vacuum and exhaust are present at the egr valve. If one is missing, it needs to be repaired.
Did you mean the dpfe sensor? This is a common failure.
Does the solenoid work? And if it does, does it pass vacuum and open the valve?
There is a lot to this system and you need some help from a shop. Throwing parts at it is expensive and most likely wrong.
Friday, December 2nd, 2011 AT 4:08 AM