I love multiple owner cars. I was wiring up my WB today into Pin 4 on our ECUs, trying to make use of ECMLink's narrowband sim feature, and found this:
I feel like I need to fix this, but I'm not quite sure whats going on here. Kinda looks like they stuck a few grounds together in one condom thing and then Pin 4 (o2 sensor) with another random white wire and then connected them both to a green and white wire that goes into the engine bay in another.
Any insight? What is going on here? Why did they do this??