Crank sensor replaced and tested. Car put back together completely with all braces and bumper hardware for the first time in 7+ months.
Went for a drive, threw a P2270 code. First time I’ve ever had that one. Post-cat O2 sensor stuck lean. Which in my car means the O2 sim isn’t working. Pulled the O2 sensor, and yep, crappy solder job had broken loose. Fixed a million percent better, won’t break again. Reinstalled. About to drive some more.