Changing out caterpillar engine cam and crank sensors

I have a 2ks serial number c12. 2002 model. My tech manual says after install to calibrate sensors. That can only be done with cat ET. When i look in the manual about calibrating, it says to only calibrate if you mess with the timing gears. Maunel contradicts itself. The question is is it really necessary to calibrate the sensor when you never messed with the timing gears? Every where i searched on here and the internet, I read that guys just take 5 minutes and swap the sensors out in their c15's and c12's and start he truck up and drive.

 

i didnt think so after research. but thougt it would be god to double ceck. thank u

 

This plug is for the starter relay on my pete. I need new plug and the pins inside. Do you know the name or part number on this plug and the pins. Having hard time searching for it. Peterbilt didn’t have any and forget the name of it that they told me

 

Ok thanks. No big deal if I just cut it off and bypass it for now with connectors right?