[Diy_efi] Mystery ignition component

[Jeff Behrens]

I have a 1991 Gmc truck with a 5.7.  Does anybody know
what the approx. 3 inch by 3 inch electrical box that
is with the map sensor and the egr valve position
sensor cluster on the intake manifold?  It has 5 pins
coming out of it and uses four wires with a wide flat
connector.  I cant find it in the truck schematic or
any parts breakdowns.


Jeff
--- Ne14RoxCJ at aol.com wrote:
> In a message dated 7/9/03 2:38:11 AM Central
> Daylight Time, 
> espresso_doppio at yahoo.com writes:
> 
> 
> Taught you what?  Incorrect information obout the
> construction of remote reservoir shocks?
> 
> 
> 
> I don't see that my explanation of remote-res shocks
> was incorrect in any 
> way. Non-efi related, yes. But my point was to
> relate pressure (positive or 
> negative) to oil areation. You are right, there is
> no gas in the body of the shocks 
> I use. But the pressure applied to the reservoir
> piston, in turn, places the 
> oil under pressure to reduce areation. Are you going
> to tell me that no 
> bubbles can form without a gas present?
> 
>   A "standard" shock has a sealed container that is
>   partially filled with oil, and partially filled
> with
>   something else (some form of gas).  
> 
> Is this not very similar to a crankcase? What would
> happen if we replaces 
> that "some form of gas" with a negative pressure?
> 
> My intention was to try to help clarify the question
> of pressure-areation 
> relation. Not to argue about how shocks work.
> 
>   Well, it did clear up where you got the idea that
>   removing gas molecules from the vicinity of a
> liquid
>   would cause MORE of those molecules to enter the
>   liquid.  Think about what you're saying for a
> minute
>   there.  The illogic should be quickly apparent.
> 
> I never said anything of the sort that I recall.
> But, thank you. My mouth 
> wasn't full enough before you started adding words.
> 
> Beau
> 
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