hot fuel module

[Ward]

It just plain stupid, Gm did thid only on a few heavy duty trucks, (GVW >
8500#).

The ECM has a calbration slot for the pump run time. I can't imagine why
they added this cluge module, It looks like a High School Electronics Shop
project. 

Its located under the dash on the drivers side and can be unpluged and
"tossed"

Ward

On Thu, 29 Jul 1999 20:43:44 -0600, Marc Piccioni wrote:

> The '88 chev van 'G' that donated its wiring harness and fuel pump has a 
> module that my local GM dealer can't figure out what it is. From tracing 
> the wiring I believe it is a "hot fuel module" or at least that is what my

> non-GM wiring diagrams call it.
>  It has 3 wires - 1 to +12, 1 to gnd. and 1 to the fuel pump hot side.
> 
> Does it maintain fuel pressure if the ambient temperature is above a 
> certain temperature to prevent vapour lock  or ?????????
> 
> /Marc
> 





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