Relocating IAT sensor?

[rr]

OK, I found some info. Didn't think I'd find it in this book, but it's
there: Air is a mechanical mixture composed of 78 percent, by
volume, of nitrogen, 21 percent of oxygen, and 1 percent of argon.

Now the good stuff. . .

At atmospheric pressure:

Temp F:    Vol. of 1lb. in ft^3:      Density (lb/ft^3)
0                 11.57                           0.0864
32               12.39                           0.0807
72               13.39                           0.0747
102             14.14                           0.0707

(Machinery's Handbook, 1976, p. 2306).

Can anybody else do something with these numbers. How much
of a change in fuel would be required?

Thanks,

BobR.

Bruce Plecan wrote:

> Why thank you!
>
> 02B0  for the 8D
> 0247  for the 6E
> are enable MAT temps for EGR.
>
> Funny how things only make sense one ya read them.
> Bruce
>    Still looking for more sense
>
> > I think the problem may be that we are confusing MAT with IAT. The 88h
> mask
> > for the '730 (v6), uses an IAT in the air cleaner. There are a bunch of
> tables
> > that
> > use it. I'm still deciphering the code, so I can't get real specific. The
> IAT is
> > read
> > 10 times a second.
> >
> > Ok, took a quick look at anht. Loop segment 10 reads the mat sensor 10
> times
> > a second. Saves the result in L013C & L0061 @ D74C. Looks like the egr
> gets
> > disabled when the MAT is less than 30c. Hmm, maybe thats what folks are
> > noticing when they relocate the sensor. . . (see D812).
> >
> > I guess what it comes down too, is how much does air density change with
> > temperature? That is what needs to be compensated for.
> >
> > BobR.
> >
> > Dave Zug wrote:
> >
> > > I'm glad this has come up again.. I never really got a responce before
> to
> > > this:
> > >
> > > I have not seen where IAT affects ANAYTHING in the '727 / '730. I see it
> > > written to ONCE and never READ or used unless I'm missing an indexed
> > > indirect bitwise X or something.
> > >
> > > ----- Original Message -----
> > > From: <OneSS2NV at aol.com>
> > > To: <gmecm at diy-efi.org>
> > > Sent: Tuesday, October 24, 2000 7:10 AM
> > > Subject: Relocating IAT sensor?
> > >
> > > > Hello all,
> > > >    Since I'm going to have the top of the plenum off my TPI to install
> the
> > > > adjustable fuel pressure regulator, would it be worth it for me to
> > > relocate
> > > > the IAT sensor and plug the port on the bottom with a pipe plug?  I
> know
> > > my
> > > > IAT sensor is out in front on my Impala, and same thing with my
> friend's
> > > > Turbo Regal.  What effects, positive or negative, will it have?
> > > >
> > > >     Thanks in advance,
> > > >        Steve Ragusa - AKA the "New Guy"
> > > >         North Jersey
> > > >       '85 Monte SS with '87 305 TPI MAF harness
> > > >         '96 Impala SS
> >

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