UPDATE: I am officially a member of the Gremlin Hunting Squad
Today I went through the effort of replacing my knock sensors AND harness together (OEM set) in hopes that this CEL would go away, but alas, P0325 came up almost immediately after 5 hours of work - I'd say within 60 seconds of driving, or around that (and idling for maybe 5 mins prior as I cleaned up the garage.) The harness is not pinched and the sensors were tested prior to installation to confirm no continuity, which would otherwise signal a short. The sensors were tightened down by hand, but not to the ~30lb spec; could this be an issue? I'm not sure what else would be.
I'm nearly at my wits end chasing this gremlin - does anybody have an idea as to what i should try next? Electronics are NOT my forte, so any help at all is appreciated. These 5VZ's are not particularly enjoyable to take apart, so I'd prefer to do it only once more and not twice

Edit: When I took off the old sensors one of them was shot, however it got mixed up on the garage floor before testing and it's unclear if it coincided with the bank 1 code.