JD:
Your EEC is on the passenger side of the dash, inside the car.
If you tilt the glove box all the way down/open, you should see a grey box held in place with a white plastic frame sitting vertical on the right side. The main harness comes in from the bottom and is held in place by a center bolt.
You need to remove the black side kick-panel to get at the EEC. It can be a bit of a puzzle to get all the way out so be prepared to spend some time and effort.
Ken