Last (and only) time I've had the knock sensor actually go off, the piston all ready had a hole in it. It's more about knowing your car and having a proper tune than using that as your safety valve.

BTW I unscrewed mine from the block last night and wrapped it up to shield against vibration. We'll see if the dyno plot straightens out at SZ.

Rick

Owner of 00 #1611 Silver (Totalled) 98.5 T-Red SVT #6180 Buckshot77@msn.com Misc 3L parts for sale