BoxerFlat4

Currently tracking down a massive misfire that occurs at around 2500 rpm, and I need to locate the OE knock sensor ie. the knock sensor that the ECU listens to. Pictures would be most welcome, I've done a search but keep hitting threads about Knocklink - I'm certain the car isn't detting, as I've got a KL fitted as well, but need to remove the original sensor from the equation.

Many thanks in advance.

tweenierob

It is above cylinder 4, it can be hard to spot the first time.
Underneath the idle control valve on the block 92-98cars

Rob