Originally Posted by
steveo
you don't really have control over when knock counts occur but you definitely have a control over how they're interpreted
if it occurs in a narrow-ish RPM band i'd reduce ignition advance in that region to safe-ish levels and zero that area in the max knock retard vs RPM table.
if it occurs in a wide area, then disabling the entire system is usually what i'd do.
as far as a hardware solution, i'd suggest passive filtering on the sensor itself rather than hacking the knock module. if you can identify the frequency, a notch filter isn't that hard to build.
headers setting off the knock sensor isn't really a problem i've had unless they're smacking the frame, usually valvetrain changes do it to me.
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