I am about to ship my ECM out to blackbear for a tune. I have my factory one (2000 year) and I also have a different one that I bought via Wait4Me. If one is newer than the other should I keep the newest one? I heard a long time ago that the 99-00 ecms had some issues and had less memory and were are less desireable than the 2001+ years. I'm going to check the numbers to see if its a newer one but if it is an 2001+ is it in any way better than my original from 2000? I will have to do a crank relarn either way because of the engine swap but just trying to figure out if there is any reason to use one over the other.

 

You are correct, use the newer ecm