Hey guys getting ready to drop my 250 back in to my GMC and seems I am missing a sensor. Can anyone tell me what it is?

[img]https://www.dropbox.com/sh/25cq6ylfzgmtoe6/tkbt54_5g_/2013-04-16%2019.12.52.jpg?m[/img]

This is an image I found online but the sensor I am missing is right behind the first bolt on the back push rod cover. Is it important? can I just block it off?

Thanks,
Dustin