Hello AmboMan, if you're planning on diagnosing this sensor issue on your own, I think you'll find the procedure from the ESM useful:
https://mega.nz/file/BtU0jRSR#r8WNJuh2FctHlfpG7UNZaD6CeCUphM0RiLwBWgpgJLw
In order to get access to the CKP sensor, the ESM says to remove the fan shroud and the compressor without disconnecting the A/C lines. While you're there, check the wiring and the connector for damage or corrosion, as it did throw that P0339 code at one point. The single bolt that holds the sensor on requires 12Nm. The 4 bolts holding the compressor on the bracket require 22Nm. The part number of the sensor is 37500-RBD-E01. If you need more information, do let me know.