Thank you for your info about the o2 sensor and the vacuum lines for the map sensor. I did not know about those specifics. I honestly couldn't tell you now what kind of sensor I had in, but I can say that I replaced some vacuum lines with silicone hose. I did end up putting the original vacuum line to the map sensor back, as I did notice things worsening.

I have since solved all rough / poor running issues by swapping in a custom ecu, posts about that are available here on BB. I have no doubt that there was more than just corrosion in the computer, but that was enough to make me go through with ditching the original electronics entirely and pave my own road. I wanted to do a custom ECU anyway.

As far as those argo tunnel errors go, my home server has been down for a bit now. I have a NAS that I built and host that Immich instance on, but I had only a single drive and it failed prematurely. I am having data recovery being done by the fine folks at Seagate and I hope to have the server back up soon. My understanding is that my data isn't destroyed, but I do have a backup elsewhere for this very purpose.
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Nathan Micklatcher