Question about 1992 Subaru Legacy
The knock sensor detects spark knock and adjust the timing accordingly. You can find the knock sensor sitting on top of the engine block in a subaru. it is held on by a 10 mm bolt, you can get to it by using a small extension. Make sure that the wiring leading up to it is good, You will probably see that the sensor is cracked. To clear the code just unhook the battery and wait a couple of minutes. Then hook up the pos first then the neg (be careful when doing this) it will clear the codes out of the computer. When you go to start the vehicle back up it will have a couple of hard starts and possibly start up then die out. This is normal, and it occurs due to the fact you reset the ECU
Posted on Jun 25, 2009
The knock sensor detects pinging in your engine due to poor gas and adjusts the engine timing so that you do not even know you have gasoline issues. It is usually located on the side of the engine block above the oil pan and below the heads in the middle of the block. To replace, unplug the wire to the sensor and use a socket to remove. To replace, screw in the new sensor and plug the wire back in.
Posted on Jun 16, 2009
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Posted on Jan 02, 2017
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