from a thread i found
Update so far......
Well, I've cleaned the EGR out twice and cleaned the Boost Valve and cleared all the crud out of the airbox as well as the solenoid under the slam panel and I'm happy with the results.
The engine starts easier now, is much less lumpy when stone cold and hardly smokes on start up. Result!!
The only thing left is to clean the throttle body out, which I'll do either later on today or tomorrow afternoon if the rain holds off. The car is running much smoother now and its in for an oil service this morning