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1998 Subaru Legacy Question: location of anti knock sensor



, 2.5L 4 Cylinder, Hartford, CT, April 19, 2009, 11:54

facing the engine, where is the anti knock sensor located on the 2.5 liter?

Also, is there a way to test?measure resistance, etc?

Thanks, in advance.
Jon G

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, April 19, 2009, 14:42

    The knock sensor is under the intake manifold right in the middle of the top of the engine. it is black about one inch in diameter about 7/16 of an inch high with a two wire black connector on it.
    The knock sensor is a piezo cell that generates a voltage when it detects a knock it is tested using a oscilloscope and looking at a patten. Common Subaru fault code.

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    , July 29, 2010, 09:10

    thank u

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    , October 16, 2010, 17:54

    do you know where it is in a 97 honda civic

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