i found mine it is on the left side in the back of the engine on top of the trans
In a 1998 Subaru Legacy, the knock sensor is located on the top of the engine block and to the left of the engine. More specifically, it is under the left rear intake manifold runner.
four4
In a 1991 Subaru Legacy, the speed sensors can be found on the driver's side of the transmission. They are located towards the rear, and there are three of them.
Under the sea.
top of front of engine, under alternator
Directly below the alternator on the block.
It only involves one bolt and one wire, but its pretty difficult to access as it lives under the throttlebody.
you dont
that the knock sensor does
Oxygen sensor on 1990 Subaru Legacy is under car, just behind engine where exhaust manifolds join but before catalytic converter. Wires run up right side of bellhousing and connect into wiring harness.
wagon
Its on top of the engine by the fuel injection (remove the air intake first). Need a 10mm socket with a long extention.