[Diy_efi] RE: Spark knock detection

[Laird Tom N]

On my mid 80's Chevy truck, the knock sensor went into the water jacket
drain plug hole.
I believe it was just an 1/8 or 1/4 inch pipe thread....

Tom Laird WC9M
Moline, IL.

-----Original Message-----
From: Keith Ballantyne [mailto:keith.ballantyne at portalplayer.com]
Sent: Wednesday, September 11, 2002 12:04 AM
To: diy_efi at diy-efi.org
Subject: RE: [Diy_efi] Spark knock detection


How hard is it to actually mount a knock sensor to an engine that has
never had such equipment?  I always thought they needed to be mounted in
the head somewhere.

Keith Ballantyne


> -----Original Message-----
> From: Perry Harrington [mailto:pedward at apsoft.com]
> Sent: Tuesday, September 10, 2002 12:37 PM
> To: diy_efi at diy-efi.org
> Subject: [Diy_efi] Spark knock detection
> 
> Hello,
> 
> I was reading through my Corvette manual last night and came across an
> interesting
> tidbit.  The Corvette has a knock sensor situated on the right hand
side
> of the
> block.  That sensor feeds to a box that has 4 wires going to it.  The
> manual said
> that the ESC module sends a 10v signal to the ECU when everything is
happy,
> but
> when knock is detected that 10v signal drops to ground.
> 
> Since there are only 4 wires going to the box, I'd assume power,
ground,
> KS, and
> out.
> 
> This could be quite useful to the DIY crowd WRT DIY fuel injection
> computers.
> 
> I'm gonna look into this a bit more, since I've been looking for a
knock
> detection mechanism for my 302.
> 
> --Perry
> 
> --
> Perry Harrington			Data Acquisition &
Instrumentation, Inc
> perry at dainst dot com
http://www.dainst.com/
> 
> Those who would give up essential liberty to purchase a little
temporary
> safety
> deserve neither liberty or safety. Nor, are they likely to end up with
> either.
>                              -- Benjamin Franklin
> 
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