blackdeathmessenger
OBS Enthusiast
I had a feeling you were going to say that. I vaguely recall doing some research years ago to see what to look for if swapping in a newer ecm. I did also price out a new ecm, but you have to swap the memcal and prom chips over. I wasn't sure about doing that since I've had these issues. There was a bulletin I found when I priced the new ecu. What are your thoughts on what the bulletin says?OK, that .bin is for a 5.7L, 700R4 trans so, it MAY not be a source of your issue.