How to change a EGR valve
As I recall this looks like a morelle mushroom, big as a man's thumb, and is mounted vertically near the top rear of the bell housing area. Remove the battery cover and the negative battery cable. Unplug the thing, unscrew the two bolts, clean both metal surfaces of all gasket material, put some gasket goop on both surfaces of the new gasket, put the new one in, screw down the bolts, hook up the wiring, etc. I actually paid a small shop to put one in mine, I provided the parts. When I went to pick it up the new gasket was still laying on the seat, I asked the guy about it and he told me the old gasket was good. I could not believe that a paid mechanic would pass on a new gasket when replacing anything. The SES light was still on, I drove it home and did the job myself the next day doing the necessary cleaning and using the new gasket. It has been two years the SES light has never come back on and my girlfriend still drives the car. I never used that shop again.