high map, low rpm knock

[Keith D. Miller]

> -----Original Message-----
> From: owner-gmecm at diy-efi.org 
> [mailto:owner-gmecm at diy-efi.org]On Behalf
> Of Bob Valentine
> Sent: Friday, March 23, 2001 2:17 AM
> To: gmecm at diy-efi.org
> Subject: Re: high map, low rpm knock
> 
> 

...

> Finally pulled 4-5 degrees out from 1600-2000 @ 80+ kpa
> and problem pretty much has disappeared, bonus the 2k
> range is no longer boggy.  Adds to my theory the knock
> was starting EARLIER than being reported on the scan
> tool.  A little extra pump shot on large transitions (40
> and 50kpa) helped too.

Very much in line with my understanding of detonation. That
is, once detonation is audible, it's already severe. How
sensitive is a DS? Sensitive enough to pickup inaudible
detonation?

Keith
--


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