Diablosport Forums

The trouble I had before is water under the bridge, the sun is up and its a new day. After much recearch I still believe you have a better product out there so I have decided to keep mine, here is the question. After GM installed my new ECM I decided to try to load a tune again which it worked fine, but since the trinity has my old orginal tune off my old ECM if I try to load it back to my ECM should there be any difference's in the two tune from one ECM to another ECM begin that its in the same truck, also I have been using the 65hp tune which runs great, I drove alittle over 300 miles yesterday and I noticed my tailpipe is really black it has alot of black soot in it which is was pretty clean before, is that normal. Thanks Jeff

A little extra soot is normal with the tunes, nothing to worry about.

If it installed a tune without reading a new backup file, that means the new PC matched the old one 100%, so there should be no problem restoring it.

Make sure all your connections are good!