Originally Posted by
frog
Since I've now discovered that my 4x4 cossie theoretically has a knock sensor and I am of a curious nature, I'd love to know where it is on the block

The plug can be seen here, twinned in the bracket next to the CPS plug.
And the sensor itself, screws into the lug on teh crankcase/sump mouting flange, directly below the bung you remove to fit a breather to the crankcase.