All,

 I didn't see the original post, but here is my two cents worth.
 The knock sensor will not shut down the engine.  At least in my
 experience, I have never seen it happen.  The knock sensor, when
 activated by a knock, will signal the computer to retard the
 ignition timing until either the knocking stops, or the ignition
 timing is retarded as far as it can be, within the limits programmed
 into the computer.  But the engine should keep running.  Now, of
 course,  the knocking, and the resulting adjustment, may cause some
 other parameter to get so far off it's nominal value, that possibly
 the engine might shut down.   I don't know here.  It just depends on
 how the computer is programmed to handle parametric extremes.

                                          Regards,

                                            Jim

On Mon, 29 January 2001, Mike Mansheim wrote:

>
> Lee:
> everything you said sounded reasonable, except:
>
> >>If the mixture in the cylinders is lean enough, you can get
> >>hot spots and knocking -- which should trigger the knock
> >>sensor and cause an engine shutdown.
>
> I don't think the knock sensor causes the engine to shut down -
> it is just one of the feedbacks the engine control computer
> uses.  Typically the spark advance would be reduced in
> response to knocking.
>
> --
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jim@jpes.com

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