Well, this mess of a headache all started when i decided to install 3" catless downpipes. After installing the downpipes, my car was thrown into limp mode throwing the code 16486
Mass or Volume Air Flow Circ Low Input
I started by replacing the Bosch MAF since it was under warranty anyways, but it didn't help. I then decided to start tracing wires and found that the solid green wire had been unhooked from the MAF connector itself. I went to the VAST website and ordered a new Bosch connector trying to make things easier by just soldering a few wires. After clipping the wires from the original MAF connector, I noticed something like tin foil inside of the insulated wire holding the solid green and solid black wires in their own contained insulation if that makes sense.
I just disregarded thinking it was something left on my pair of cutters. I hooked up the wires exactly according to the pre-labeled wires from VAST. The MAF connector only had 4 wires - solid green, green/black, violet/gray, and green/yellow. On the other end coming from the ECU, it's all of those and then a 5th, which is the solid black wire. The wiring diagram says it's the ground wire, so I tried to ground it off to the frame in a few places, but it only makes me run super rich and misfire. When I twisted the solid black wire to the solid green and then connected it to the MAF connector, it doesn't misfire or run lean, but I'm still in limp mode due to the 16486 code.
If someone has some advice please feel free for suggestions! I'm probably just overlooking one thing, like the silver inside of insulation that the solid black wire goes to. I've added a picture of the wiring diagram to the bottom. The mass air flow is in the bottom right corner (G70).