1996 Subaru Impreza 2.2l Failed Emissions Because Of A Knock Sensor. Where Is The Sensor Located

There are 4 Answers

1. cellie says:

   the knock sensor usually goes on the cylinder head. tough job to get to. you should take it to a realiable mechanic to have it checked.
2. dodge man says:

   if I’m not mistaken it fits on the side of the engine just above the oil pan on the 2.2 engine,,its not too hard to get too and replace though,,,its a round sensor,,it should have 3 wire harness that goes to it.good luck happy new years.
3. snake says:

   sometimes computer code may lead you to the knock sensor but it could be other problems ; mass air flow sensor ,fuel pressure regulator . when the maf or fpr arenot not working properly they will throw a knock sensor code , the knock sensor is very unlikely to be the problem (unless it has a loose connection )
4. Trackerrrr says:

   Sensor should have a blue/white wire running to it.

   http://www.autozone.com/images/cds/gif/large/0900823d801c6d05.gif

   Knock sensor is shown in the lower left of the pic.