Where is the diagnostic port on a 1993 ford e250 van?

The diagnostic port (also known as the OBD-I port) on a 1993 Ford E250 van is typically located under the dashboard, on the driver's side. It's often near the steering column, but its exact location can vary slightly depending on trim level and options. You'll be looking for a rectangular connector with several pins. It might be partially hidden, so you may need a flashlight to find it.