Thanks, that one's a real pixel-hunt. I found 6 of the evaporator pieces but I guess I'm still missing one... I double checked the place I found the first 6 so I'm guessing it's somewhere else.
Use the sniffer near hydrocollector
I tried that already. Can you be more specific?
I randomly clicked with the hand until I found it. After a cutscene I'm now softlocked outside andromecon.
Edit: next time around the sniffer worked normally.