Cel flashing when coasting to a corner.

Everytime I coast to a corner, my check engine light begins to flash and does so until I turn the corner and begin accelerating again. Sometimes when it's warm out it seems, the Cel goes away. I'm thinking it's the EGR valve sticking. Any input? Where is the EGR valve? Thanks, it's appreciated.

Uh, how about a scan for the pending or history code? And maybe the year of the car??

'96. I just need to know where the EGR valve is.