Harness identification

[SCBiggie]

Hello all,

1992 N/A 2+2

I'm hoping the pros here can help me identify quite a few (5) disconnected wiring harnesses in the engine compartment. I bought the car running pretty rough and have since gotten it stop throwing ECU codes and I seem to be at full power. I was getting code 34 and decided to relocate the sensor until I can repair it properly. In doing so, I found these connectors just dangling free in the engine compartment. Any insight would be greatly appreciated. *There's no telling what was hacked up/modified before I bought the car.

[itsa300zx]

1st pics is the cruise control stuff, looks like its removed. You can see the 2 empty bolts in front of the battery.
Middle 3 pic are for the AIV system and EGR, probably removed also, common deletes
Last pic by the BMC is for the PRVR, probable removed also, common deletes

[SCBiggie]

Thank you!! Really appreciate it