[Diy_efi] Mystery ignition component

[steve ravet]

Is it the ESC module?

http://chevythunder.com/esc_module.jpg

--steve

Jeff Behrens wrote:
> 
> 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.

-- 
Steve Ravet
steve.ravet at arm.com
ARM,Inc.
www.arm.com

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