gm map sensor

[Walter Sherwin]

Just ask for either of the two 2bar P/N's that I mentioned earlier, and
that'll get you a 2bar MAP from a GM dealer.  Connector wise, you can either
grind the locator tab off-of your 1bar connector, or order the proper 2bar
connector pig-tail assembly.  The various 1 & 2 & 3 bar MAP P/N's and
corresponding connector P/N's were discussed in detail not too long ago on
this list.  Give a holler if you can't find that info, and I'll forward it
your way.

Walt.




> 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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