i blew 3 of them sensors up too, they all leaked out the plug end, all pep boys or auto zone crap. right now theres a brass plug in the hole to block it off, it gets old fast.
buy a oil pressure gauge, problem solved.
best way ive found to change it tho is to take off the pass side tire, reach in with large channel locks and remove it with them, the large wrench has no room to work in, not worth the effort. then re install the new one just snug it up, it has tapered threads so stop cranking when it first gets tight. make it nice and snug, thats it! notice how much threads are showing on the old one before you take it out, thats as far in as it goes.