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In light of the over revving, I would be looking to do a diesel compression test on each cylinder to check for any damage to the piston rings or cylinder bore and valves, etc, before I spent out on electrical sensors.
It is unlikely for an electrical component to failure due to over reviving as opposed to an internal mechanical failure, although you say there are no faults on the computer however, the yellow management light means that there is or has been a diagnostic trouble code stored and it would be useful to have this code.
The compression figure for your engine, 24.5 to 29.4 bar if you have access to diesel compression testing equipment.