The oil sending unit on a 2002 wrx subaru is almost under the alternator. I suggest you remove the alternator and it is easier to remove the oil sending unit.
The oil sending unit is located on the back side of the engine on a 2002 Lancer. It is under the intake manifold.
the oil sending unit is located right above the oil filter.
Firewall side of engine get it from under the car
The oil pressure sending unit and the oil sending unit are the same. It is located almost directly under the alternator. Remove the alternator and removal is simple when you have the correct socket.
near the oil filter
The oil pressure sending unit is located on the back of the block. it is the sensor located closest to the alternator.
on left side of engine block next to oil filter
You failed to mention what sending unit you are referring to suac as fuel Or oil.
remove old oil sending unit located next to the distributor. At an auto parts store buy the socket made just for the oil sending unit. You only need to remove the air covers.
It's located to the left of the oil filter.
i dont konw