[email protected]
Junior Member
- Joined
- Apr 2, 2015
- Posts
- 3
- Reaction score
- 1
- Ram Year
- 2003
- Engine
- 07 4.7
So my brothers 2002 3.7 started knocking so I decided to put this 07 4.7 motor and trans in the truck so now I have all new wiring harnesses outside of the cab, new fuse box under the hood, different ecm, and now I'm running into issues with the new ecm. When plugged in properly I do not have accessories, so when I unplug the top plug on the new ecm the accessories work. Also the dash is saying no bus, we have no gauges functioning, and it doesn't turn over every time I hit the key, is this because the ecm I bought needs to flashed? Has anyone done this before? I'd really appreciate any advice anyone has to give on this.
