Hi, I have a ECM from a 2002 chevy tracker that I'm going to put in a 2003 chevy tracker (both are manual transmissions). Is there anything I should know about the installation process? Or is it just as straight forward as taking the ECM out? Does there need to be any reprogramming that needs to be done? The two trackers are the same other than being a year apart so I'm guessing the ECMs would be a good match? Am I wrong?