hot fuel module

[Ward]

No it can't but why would you want to ?

The current GM spec for most EFI fuel systems is that thay must maintain max
pressure (typicaly 3 bar or 45 PISG) not to drop less than 10 PSIG in 5
minutes. 

Else you have a leak, injector, pump line check or in the tank.

Ward

On Fri, 30 Jul 1999 21:05:16 -0400, Shannen Durphey wrote:

> 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
> 





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