sentra leaking through some sensor
 

My daughter Sentra 96 devoloped very heavy oil leak from the area above and to the right from oil filter (looking from underneath and behind the engine ). I think it is oil presure sending unit, but I am not sure. At the same time a lot of water got to the oil. Leak is heavy, so I can see it emediately after turning the engine. Car had just recently replaced headgasket. I wonder if this two leaks, coolant and oil, can be related? Car has 90K. I was advised to have to options: get the new engine (from junk yard) or junk the car. Do I have any more options? Thanks for any help