--------------------------------------------------------------------------------

Whatsup guys i have a question ive been looking on forums saying your knock sensor is on top of your oil filter,i look theirs nothing but a oil sensor,i try to feel any sensor nothing,the previous owner that had the lude his knock sensor harness wasnt plug into the knock sensor,so im having a really hard time finding the knock sensor...Ya that was the downgrade when i bought the car used the check engine light was on sucks!!
So any pics on a h23a block would be good,or info would be good...pls help asap

 

Its under the intake manifold. The only Prelude that wouldnt have a knock sensor is the F22 prelude

 

The knock sensor is located at the top of the block above the oil sensor. Here is picture of a b18 but it's in the same general vicinity and it looks the same.