My local service center read a "check engline" light as a "P401" code on my 2002 100 series LC...which ithey said indicated a fault in the EGR system (insufficient flow). I'm a reasonable mechanic as far as "remove and replace". (see my contribution on replacement of AC evaporator)...and thought I would just replace it and perhaps the vacume tubing vs trying to clean etc. Howevver...I can't seem to find one ANYwhere..or even an image of it...???? I have searched the internet from every angle....am I looking for something that does not exist, or does it go by a different name? I can find EGR valves for earlier (90's) models....but nothing for the 02. Does someone have a pic or schematic for the EGR system for this yr/model? .....and, where can the vacuume tubing be sourced? Many thanks!