how does a knock sensor work?

[David Gravereaux]

Is it basically a microphone tuned to a certain pitch?  Albeit, a very
unsensitive one.  Any guides for a newbie to understand these things?  I'd
better hit the bookstore :)
--
David Gravereaux <davygrvy at pobox.com>

$ make war
make: *** No rule to make target `war'.  Stop.  Try `love' instead.
----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org