Volvo V70 XC 1998, Intermitting P0325

[JorgenVolvo]

Not sure what happened to my last post, but I`ll make a new attempt (sorry if this leads to a double post).

Having problems with a P0325 code on my car, Knock sensor bank 1. This only occurs when the engine is at operating temperature, and if I keep it at medium load for a while, around 2-3000 rpm.

Question is if this tells me that my knock sensor is bad, or if it actually detects knock? I`m running 95 octane.

Any advise is appreciated