Hello, I was reading some threads about the 20amp fuse blowing, and I found that the problem was that under the driver side above Cata. Converter where there's a big black plastic harness with two seperate harnesses with wires. One was hanging down touching the muffler and was grounding a black wire out, so I taped it up and was about to test drive it, but when I cranked it, it hesitated to start, so I turned it off and looked back under the jeep and the wires I had taped was hanging, but not where I taped it at. It has 2 white wires side by side, a grey wire, and a black wire side by side inside a black plastic piece with 4 holes in it that connects to the piece that I had to tape. Any answer to what this is?