Couple of MAP sensor questions

[Bruce]

Er, well, the the heater controls have a storage canister, you have vac
wipers?.    Yes vac wipers have a vac *leak*
Bruce


----- Original Message -----
From: "Marteney, Steven J." <smarteney at xlvision.com>
To: <gmecm at diy-efi.org>
Sent: Monday, July 30, 2001 1:46 PM
Subject: RE: Couple of MAP sensor questions


> Do the A/C controls or (possibly) wipers have any vacuum bleed?
> Thanks!
> Steve
>
> -----Original Message-----
> From: Bruce [mailto:nacelp at bright.net]
> Sent: Monday, July 30, 2001 12:26 PM
> To: gmecm at diy-efi.org
> Subject: Re: Couple of MAP sensor questions
>
>
>
> You want it close to the manifold, and T'ing is fine so long as there is
no
> vacuum bleed at the other end,  ie brake booster hose / PCV hoses are a
> nono.
> Short small diameter lines.
> On some applications the use an O ring, and mount the sensor to the
manifold
> (looks to be the best way).
> Bruce
>
>
> ----- Original Message -----
> From: "Marteney, Steven J." <smarteney at xlvision.com>
> To: <gmecm at diy-efi.org>
> Sent: Monday, July 30, 2001 12:15 PM
> Subject: RE: Couple of MAP sensor questions
>
>
> > There are 3 vacuum ports (not including the power brake booster port) on
> the
> > TPI plenum (that I remember).  One is underneath the plenum right behind
> the
> > throttle body and it is dedicated to the EGR system.  Two more are on
the
> > passenger side.  One hooks only to the pressure regulator, the other is
> the
> > one that is T'd.  Some of its lines go into the wireing harness and I
> assume
> > go to the A/C controls.  The other lines I'm not sure where they go,
don't
> > remember.  I don't see any other places to put it unless I 'T' it.  And
I
> > hate to do it on the line that's already T'd twice.
> >
> > Steve
> >
> > -----Original Message-----
> > From: Barry Tisdale [mailto:btisdale at cybersol.com]
> > Sent: Monday, July 30, 2001 11:44 AM
> > To: gmecm at diy-efi.org
> > Subject: Re: Couple of MAP sensor questions
> >
> >
> > While not being at all familiar w/ your manifold or plenum, the best way
> is
> > to provide a separate vacuum source for each device, i.e., no 'tees' or
> > anything.  Is this do-able on your setup?  Easier to troubleshoot, too.
> >
> > Barry
> >
> > At 09:26 AM 7/30/01 -0400, Marteney, Steven J. wrote:
> > >Okay, I'm slow and I admit it, but the 165-730 conversion is just about
> > >underway.  Would have been this weekend but other projects got in the
> way.
> > >I have a couple of questions on hooking up the MAP sensor.
> > >1) I know Bruce says use the hard vacuum lines but I'm wondering how
long
> > of
> > >a hard line is too long.  I've been stealing a lot of stuff out of a
6000
> > >and I got a piece of hard vacuum line with rubber boots on each end.
> It's
> > >about 3 feet long.  Is that too long?
> > >
> > >2) Will a 'T' in the line effect the MAP sensor operation?  One vacuum
> port
> > >on my plenum already has two T's in it (not my doing) and I hesitate
> > putting
> > >in a 3rd.  The only other one (easily) available is hooked to the
> pressure
> > >regulator.  I thought about T-ing that one.  Bad idea?
> > >
> > >Thanks!
> > >Steve


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