Fm > Bill
yes, you can clean it yourself. You may have to buy a new gasket to put it back together,
but often the pintle (valve) only needs to be cleaned of carbon to restore function.
I strongly agree with Bill in his suggesting that you can 'clean' the unit.
I've had considerable efforts on EGR valves, however, mine is ......and have found that they will collect carbon bits, which results in the pintle not
seating securely. Thus, the code light coming on.
In my cleaning efforts, I'll start with some dental tools/picks, and finish with an air gun. It has worked on my 1995 car, and at 515,413 miles as we speak, there has never been an issue. [1995 SL2 Saturn in this case.]
Your Linear EGR (94 and newer) is a completely different type,
and doesn't respond to cleaning as well as a digital valve.
This shouldn't stop you from trying though.
In my case, the unit was
Linear, while the cleaning effort worked very well.