Where is the ECU on a 83 Pontiac Trans Am located?

The Engine Control Unit (ECU) on a 1983 Pontiac Trans Am is located under the hood, typically on the passenger side inner fender well. However, the exact placement can vary slightly depending on the engine and options. It's usually a fairly large black box. You'll likely need to look closely and possibly move some wires or components out of the way to see it clearly.