Desensitizing GM knock sensors

[ECMnut at aol.com]

Shannen is right.
The fact that the knock is detected as you hit 100 KPA, strongly
suggests that it's not a false signal...  Did going to much higher 
octane fuel reduce the severity?  As he also mentioned pulling 
a bunch of timing out of it as you near 100KPA is a good idea.  
If it reduces the knock spike, you'd better not "deafen" your sensor.
BTW, its not unusual for a fastburn style chamber to require less
than 20 deg of timing under boost.
MV

> I think the last thing I'd want to do is run my engine knowing it was
>  showing knock under boost.  I'd try everything under the sun to (1)
>  confirm knock, and (2) remove it first.  Have you verified the scan
>  tool readings with another knock sensor?  Turned the advance as far
>  down as it can possibly go?  Looked at the plugs for signs of
>  detonation?   Turned the boost down to see if knock disappears?
>  Running with the scan tool showing knock probably shouldn't be treated
>  the same way as driving with the "fasten seat belts" light on.
>  Shannen
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