Chevrolet Tahoe Oil Pressure Sensor Replace/Remove

I Am Installing A New Oil Sensor. There Is A Plastic Shield Making Access Difficult. I Want To Remove This Piece Of Plastic As It Appears...

I Will Replace And 2 To 3 Months Later It Will Go Bad. I Can Deal With A Bad Ops As I Check My Oil Every Fill Up On Gas. My Question Is...

I Changed Out The Oil Pressuer Sensor Today. Would It Couse A Vacume Leak If Not Seated Properly? After Changing The Sensor It Would Start...