why don't you guys that are worried about engine failure put your minds at ease and simply pop your EGR valve off, spray it down with carb cleaner and put it back on. Take the PCV out, shake it next to your ear. If you hear it rattle you can keep it in, if you don't feel comfortable in that decision, replace the $4 part.
If it still consumes oil afterwards, call James Scot Farrin.