Long story short. I had ordered new wiring harness off of Amazon. My problem is that I no longer have the original to look at to see if the wires are in the connector in the right order. Right now extruder motor just stutters when activated. And yes I did try reversing the connector on the board. So if someone could actually look at their connectors, it would be help me out a lot. On the new harness the white connector wire line up is the first pin hole is a red wire skip one hole then black then blue then skip one hole then finally a green wire. Looking at it from top to bottom with the two humps on the left. Now on the other end looking at the black connector with pin release on the left from top to bottom is red blue green and black. By the way this is on a robo3d plus.