New pro I discovered:
- The fuel pump was replaced a couple years ago, granted it was with an aftermarket unit.
- Windshield washer fluid pump does not work. Thankfully cheap aftermarket pumps are available, but might be a pain to replace.

This is what I'm currently thinking. I wasn't able to get a good look at what brand the sensor is but the cable should absolutely not be taught like it is. I would put a picture up but unfortunately I forgot to take a picture. When I get the car back on the lift tomorrow to change the wheel bearing I'll snap a picture so you all can see what the cable routing looks like. It's not good, I can say that for sure.