I have a 99 Accord V6 with 110,000 miles.  The Malfunction Indicator
Lamp came on, and I ran the code and got P0401 Insufficient EGR Flow.
I took it into the dealer and they said that the car has already had
the service bulletin # 99-085 done to it (Must have had it done before
I took ownership of the car).  The wanted to charge me $300 to clean
the egr valve and surrounding areas.

My question is, Should they fix it for free since it supposedly was
already fixed previously?  Also, Is there a way to verify that the car
does indeed have the bulletin #  99-085 done to it? Can I view the
pipe/kit?

I was under the impression that once the car got the kit, this problem
would no longer occur.  

Thanks for the help!!!