gm map sensor

[Walter Sherwin]

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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