I have 2004 Dodge Stratus R/T 3.0. I swapped engine out and put in a engine from 2006 Mitsubishi Eclipse GT 3.8. Took a while cause of my time and help. Pain in the ***. I have the ECU from that engine.How do I go by as for installing it or do I use my original in my car? Do I reprogram or what? Help plz

 

Youve made a few threads here on a similar subject. I can tell you, no one here that is active is familiar with this swap. Your best bet is Club3g, or the many facebook groups. From what i recall reading, your stock ECU should work. Probably need the Tactrix cable and someone to at least remote tune it.

Edit - I already answered this in this thread you created.