Perhaps the most frequently asked question here. Knock sensor looks like a very small donut with the mounting bolt through the center. Look behind the intake manifold several inches down, centered left and right on the engine block. I believe that there's only one wire attached, but it may be two.
Where is the knock sensor located on a 1999 Subaru Forester?
The knock sensor is located near the idle air control solenoid valve on a 2001 Subaru Forester. The knock sensor is responsible for sensing vibrations caused by engine knock.
If somebody knocks on the front door of the Subaru, the KNOCK sensor, sets off the KNOCK Alarm....LOL
Knock sensor/vibration sensor
Yes.
Not necessarily.
Could be a bad knock sensor. The ECM may be retarding the timing based on bad input from a faulty knock sensor.
that the knock sensor does
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.
P0328 on an OBD11 equipped automobile (everything since 1996) is a knock sensor code. I believe that it says the reading is over the high limit. You should focus on the knock sensor and the wiring leading to it. --Ken
Couldn't be easier. Once you locate the knock sensor below and behind the intake manifold, it is held on with one screw through the middle and connected to the wiring harness by one plug. Finding it is the hard part. --Ken
knock sensor location