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

Asked by for the 1997 Jaguar XJ6
It is on the engine block just above the front of the starter motor (driver's side),
1 more answer
Up under the intake manifold mounted to the engine block