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Good day guys I have a 2011 Buick Regal 2.4 Im replacing the ECU with a used one that came out the same model and year...do I need any other part like the key or a blank key bcm, in other words can I use a used computer and key from donor car to start my car ...will it start or what advice you would recommend me to do
I don't think you will have success installing a used engine module in your Buick.
Even with the appropriate General Motors Tech line Connect software and J2534 pass through device, that car is an early adopter of Global A architecture. They are designed in such a way that they can be programmed to one car one time and then never again.
Check out this premium video by Matt Skundritch going over Techline Connect to get an idea of the software and tooling involved in programming General Motors modules:
scannerdanner.com/scannerdanner-premium-...onnect-overview.html
