Swap Grounding Gremlins! Tips on SENSOR ground please

Bobzilla said
If the wire that is cut is the single wire going into the PCM, then all sensors using that ground will read out of range.
If the cut wire is for one sensor connection that may be missing, only that sensor will read out of range.
If you have the intake with sensors, check which connectors on your harness will connect to properly and mark those with masking tape. Then you’ll know if any are missing. It will make easier to tell what is missing. Maybe post a picture of the harness so we can see where that wire is.

I think I found the most plausible original location of the Sensor Ground. As seen in the pics, I think it was part of the Cruise ground (unused). If attached to this, then you can see the factory ground it was wrapped with. If this is the case, then I think I can ground this sensor wire to the fender as it should be "at the end of the line" of the sensor ground system. Any thoughts are appreciated!