I just put mine in a couple hours ago now. My old one had a nice big crack running through the outer casing and was making it overly sensitive. Because of that, I was getting up to 7 degree of ignition retard coming onto boost. Fucking sucked.
But now, new knock sensor and
ECU reset, I dont get any more ignition retard anymore normally. It went up to 1 degree of retard when I was giving it an extended boost going through all the gears a few times and the intake temps went above 35C.
All good. Im very happy and my lost power has been restored.