gm map sensor

[Richard Wakeling]

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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