from the Tech Tips ......... and most of the links in that Google search have the How-to's in them.
car up on a lift
lower air deflector removed
oil pressure sender socket
small hands, tight work
remove oil filter
remove oil filter adapter
remove electrical connector
carefully place adapter in vise, padded
remove sending switch
Reverse for replacement. Probably need two oil filter adapter O-rings, dealer. Bolts to 12 lb/ft. 1/2 quart new oil. Replacement lower deflector plastic rivets on the Help! racks at parts stores. (Pull out the center pin, rivet collapses, pull rivet. Use over again.)
It is difficult to do without removing the oil filter and filter adapter since there's very little room to work. You'll have to drain the oil when you remove the oil filter and adapter, so yes, it would be good to plan to do an oil change at the same time.