I have a 2004 Dodge Stratus R/T 3.0 . I swapped engines with a 2006 Mitsubishi Eclipse 3.8 . Can I use my original ECU or can I rewire the one from the Mitsubishi into my car?

 

I recall most being able to only have to tune the stock ECU. You'll need a distributor adapter plate along with a few other pieces to make it work i believe. This is really not the best place to get info on the net as far as Mitsubishi engine swaps are concerned. Not a whole lot of info here.