hot fuel module

[Shannen Durphey]

Ward already mentioned the large GVW vehicles were the ones to recieve
the module, and that it could be tossed for your app.  But Ward, can
the ecm maintain pump operation after the ignition is shut off?
Shannen

Marc Piccioni wrote:
> 
> Yes, it was a 3/4 ton.
> 
> ----------
> From:   Shannen Durphey[SMTP:shannen at grolen.com]
> Sent:   July 30, 1999 6:15 AM
> To:     gmecm at efi332.eng.ohio-state.edu
> Subject:        Re: hot fuel module
> 
> 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
> 
> The hot fuel handling module will keep the pump running for about 20
> seconds after the vehicle is shut off to push hot fuel out of the fuel
> lines.  It's purpose is to purge vapor from the lines to reduce hot
> crank times, and it's used in vehicles subjected to large workloads.
> Was the van a 3/4 ton or larger?
> Shannen
> 
>                      Name: WINMAIL.DAT
>    WINMAIL.DAT       Type: WordPerfect Document (6.1) File (application/x-unknown-content-type-WPWin6.1File)
>                  Encoding: x-uuencode