You have a 1999 Saturn sl where is the egr valve?
Its on the right side of the engine if you are looking at the
engine from the front of the car. Its a black cyllinder about 2.5
inches in diameter and about 5 inches tall with some wires that go
into the top of it. There are two hex head bolts that hold it in,
the rearmost is rather hard to get to unless you have an extension
for your ratchet.