could i be having false knock?

[navyblue2000]

i'm posting this here, because the knock sensor is a kind of in depth aspect of the car...so..

i know the 3.8's are known to have a way oversensitive knock sensor, so...
i've come to realize over the last week what a billy-bob job this guy did when he put my cat back on. instead of the welded hangers, he used rubber. well, it's got about 6 or more inches either way of side to side movement, and 3 inches either way of up and down movement. and under throttle in neutral, it shakes HARD up to the Y pipe. the I pipe, off a Z28, is actually crimped from left turns with acceleration, has crushed the pipe on the torque arm..any time i hit a bump or anything like that, even at the track when i shift 1-2, it shakes and bumps and everything. i guess my question is, is with all the vibes and rattling...especially at the top of third gear, it runs out of steam, could i be getting some kind of false knock?

from what i understand, wrapping the knock sensor in teflon will decrease its sensitivity. is this true?

[Red2K1]

A false knock is very possible. Had a similar problem with an LS1 after an exhaust system install. Had to re-engineer the system so that it did not bang against the floor pan. Don't know about the knock sensor.

[Magnus]

I still don't know about over sensative. Before heads/cam I was able to push 31 degrees of advance and I know Mike Huff did too.

K sensors are supposed to be sensative, they save the engines.

I would take your car back to bob hilljack and have him fix his shoddy work.

It is possible that the knocking could be causing KR but Its doubtful. The KR sensors listen for a different kind of knock.

If you scanned the car, you'd be able to tell if you had any knock or not.