gm map sensor

[John Dammeyer]

Hi all,

If I wanted to pick up the 2 bar MAP sensor from GM would I just ask for
that part number or is there a particular model and year to use as a guide?

Thanks,

John Dammeyer


----- Original Message -----
From: "Richard Wakeling" <kojab at optushome.com.au>
To: <diy_efi at diy-efi.org>
Sent: Monday, January 29, 2001 2:54 PM
Subject: Re: gm map sensor


> Hi Walter, Jeff
>
>     Did you have a look at  http://www.cse.unsw.edu.au/~akwa622/gmecm
> My son Andrew and I spent some time with it. Let us know what you think
with
> regards its accuracy.
>
> Cheers Richard.
>
>
>
> Walter Sherwin wrote:
>
> > Yes, I uploaded that file.  The transfer equations shown are direct from
> > Delphi for both a garden variety 1bar MAP and the 16009886 2bar
MAP(which
> > later changes up to a 16254539).  At the time, I ran a few bench test
points
> > to see if they tended to fit the expected curves.  They did indeed.  I
now
> > need to do the same with the 16040749 3bar MAP.  I don't have the OE
3bar
> > transfer function as a sanity check, so,  I'll need to generate a larger
> > number of sample points and then crank the math.  Should be reasonably
> > accurate though.  Anybody have the proper 3bar transfer function handy?
> >
> > Walt.
> >
> > > Thanks, Walt.  Looks like good info.  I would also like to see the
> > > spreadsheets containing the actual data as well, if possible.  Are you
> > > the one who uploaded this file?
> > >
> > > I'll let you know if I decide to run some calibrations myself.  If I
go
> > > that route, I'd be happy to get calibration data for any other MAP
> > > sensors people want to let me borrow for a week or two.
> > >
> > > Jeff Webb
> > >
> > > Walter Sherwin wrote:
> > > >
> > > > Jeff & Hamid,
> > > >
> > > > Here's something from the FTP site from a while ago
> > > > ftp://ftp.diy-efi.org/incoming/Map1Map2_Transforms.xls covering the
1bar
> > and
> > > > 2bar GM MAP sensors.  I have not yet worked-up the 3bar MAP
> > relationships,
> > > > although I need to at some point.  If someone gets to this task
first,
> > I'd
> > > > sure appreciate a copy of your findings, as it would save me a bunch
of
> > time
> > > > (never enough hours in the day around here...).
> >
>
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