Hey I think this is the oil pressure sensor switch, Whats the easiest way taking this off without breaking the plug

 

crescent wrench. how I got it off my brother's 7m.

 

Deep deep socket or an open wrench

 

size??? 1"??

 

I cant remember if I just grabbed mine with some channel locks, or if I used a deep socket.

Either should work though, the more I think about it, the more it was just a pair of channel locks and removed that stud poking out of the engine to get easier access...maybe?