lol,ive never noticed either,would have noticed when i removed mine but
anyway got 2 knock sensors so its back to ava on saturday for some more testing

out of interest what does removing the knock actually do?obviously it cant detect knock from the engine as its not connected but will it not get other noises from around the engine bay
also what would a fucked knock sensor do to the power as in how much power does it sap,as im not gettin any knock,but the ignition is being retarded so presume its faulty KS,or fuckin hope it is
what other things can cause the ignition to be retarded