Another Casualty

[Len Sabatine]

     Yah, Some Compaq notebooks have a small temp enabled fan that maintains
     X temperature range. I believe the fan is wired thru a small temp 
sense regulator
     that in turn operates the fan much like vehicle cooling fans. This 
should be able
     to be accomplished independently of the ECM , thereby not placing any 
current
     or amperage draw on ECM's resources. I would think the ECM would run a bit
     crispier @ lower maintained temperatures , agreed , at high demand 
usage, include
     in that high ambient cabin temperatures from a long heat soak. I would 
have to lean
     in the direction of drawing heat out of , in lieu of pushing air in , 
taking into account
     high moisture conditions and condensation related responses to radical 
temp swings.
     Brushless fan motors have minimal Rfi noise as well... Just some 
thoughts. ><.
     Len

>How about a ram-air ecm cooling kit?
>
>You only need to cool the ecm at high speed and high rpm anyway.  That's when
>it's working the hardest. ; )
>
>Shannen
>
>Len Sabatine wrote:
> >
> >    Many CPU fans run @ 12V. Maybe snag one from a small PC power 
> supply, etc.
> >    Len
> >
> > >There's the 5V reference...I wonder if a fan would be too much load 
> for that.
> > >
> > >-----Original Message-----
> > >From: Programmer [mailto:nwester at eidnet.org]
> > >Sent: Friday, July 20, 2001 10:08 AM
> > >To: gmecm at diy-efi.org
> > >Subject: Re: Another Casualty
> > >
> > >
> > >Yeah--maybe one of those chip cooling fans...is there a 5 volt source 
> inside
> > >the ecm ?
> > >
> > >Lyndon
> > >----- Original Message -----
> > >From: Gonyou, Jeremy (.) <jgonyou at ford.com>
> > >To: <gmecm at diy-efi.org>
> > >Sent: Friday, July 20, 2001 5:28 AM
> > >Subject: RE: Another Casualty
> > >
> > >
> > > >
> > > > Yeah, it was about 90 yesterday.  My ECM is not underhood, but is
> > >underdash.
> > > > After work I got in my car and everything fired up fine, but 
> wouldn't run
> > >on my socketed memcal.  I tried about a dozen combinations of known good
> > >chips and memcals - nothing was conclusive.  I replaced the ECM *and* 
> memcal
> > >and everything is fine now...I'm just not %100 sure what happened.
> > > > I'll go with the overheating thing for now...
> > > >
> > > > Thanks for the help, guys (and the sandwich jokes).
> > > >
> > > > Jeremy
> > > >
> > > > Bit of incriminating evidence:  I usually leave the memcal cover 
> off for
> > >quick prom changes.  This probably didn't help.  Yesterday I put velcro on
> > >the cover so I don't have to operate a nut driver to take it off.  Maybe a
> > >fan would be a good diy project?
> > > >
> > > > -----Original Message-----
> > > > From: Programmer [mailto:nwester at eidnet.org]
> > > > Sent: Thursday, July 19, 2001 5:21 PM
> > > > To: gmecm at diy-efi.org
> > > > Subject: Re: Another Casualty
> > > >
> > > >
> > > > Really hot day there ?? This may sound funny--but pull your ECM and 
> stick
> > >it
> > > > in the fridge for an hour...and re-install it. If it fires up
> > >fine...butter
> > > > it, it's toast. Did you sandwich cost $7.30 ??
> > > >
> > > > Lyndon.
> > > > ----- Original Message -----
> > > > From: Gonyou, Jeremy (.) <jgonyou at ford.com>
> > > > To: <gmecm at diy-efi.org>
> > > > Sent: Thursday, July 19, 2001 11:17 AM
> > > > Subject: Another Casualty
> > > >
> > > >
> > > > >
> > > > > So I go out to Wendy's to get a sandwich and when I get back my 
> Sunbird
> > > > has a high idle, constant SES, and no ALDL comms.  I replaced my 
> hacked up
> > > > memcal with a bone-stock unit, but the same stuff...limp home.
> > > > >
> > > > > Is it just me...or did my ECM go out to lunch the exact same time 
> that I
> > > > did?
> > > > > Is this how the '7730s go, just all the sudden?
> > > > >
> > > > > Jeremy (limping home)
> > > >
> > > > 
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> > > >
> > > > 
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