Where is the control module on a 1984 Pontiac fiero?

The 1984 Pontiac Fiero's control module (more accurately called the Engine Control Module or ECM) is located under the hood, on the passenger side fender apron. It's usually attached to the inner fender well, often near the brake booster. It's a fairly large, rectangular box. However, its exact location might vary slightly depending on the specific options installed on the car.