Where is the knock sensor located on my engine? on 1997 Jaguar XJ6

My check Engine light is on and diagnosed bad knock sensor. I have the part but my husband cannot find where it goes. It said on line on the side of the engine but we cannot find it..... Help

2 answers
It is on the engine block just above the front of the starter motor (driver's side),
Up under the intake manifold mounted to the engine block