3 bar MAPS (was: RE: GM 2732 won't program...27512's)

[the Fredericks]

AFAIK, a 1 bar MAP is a 1 bar MAP, a 2 bar MAP is a 2 bar MAP; there are no
calibration differences (at least for GM, anyway).  There is a 3 bar MAP
available.  Its range is from approximately 18 inches of vacuum to 30 psi
boost.  It looks identical to the 2 and 1 bar MAPs, with the exception of
the inside of the weatherpack connectors.  They're color-coded differently
for 1, 2, and 3 bar ones.  Ken Mosher from the gnttype list sells them
reasonably.  See  http://www.turbo-link.com for info; should be somewhere
under parts or accessories.

Good luck!
Kendall Frederick

> -----Original Message-----
> From: owner-gmecm at esl.eng.ohio-state.edu
> [mailto:owner-gmecm at esl.eng.ohio-state.edu]On Behalf Of Lou
> Sent: Sunday, October 17, 1999 9:30 PM
> To: gmecm at efi332.eng.ohio-state.edu
> Subject: Re: GM 2732 won't program...27512's
>
>
>
>
>   Hello,
>    I am looking for a MAP sensor that I can use from vaccum (i.e. manafold
> vaccum at idle) to +20psi (from a supercharger)..   Do any of the
> OEM (i.e.
> GM's) sensors have a dynamic range that would be suitable for this?
>
>   -- another good question- most of the GM MAP sensors all --look-- alike,
> are they the same calibration ?  I would imagine, if I were the
> minds at GM,
> I would use the same exact sensor for as many cars as I possibly
> could. Did
> GM do that? or are there a whole bunch'a diferent MAP sensors ?
>
>   --- third quiestion:   I have an 88 GMC Jimmy (s-10 blazer equiv) and I
> have been told that I have a 747 ECM in this truck. I was
> assuming that this
> was the case, but when I looked at the ALDL serial data, it was coming out
> at 8192 baud. According to the data I have seen on this list, the 747 ECM
> uses the 160 baud link.. can anyone explain this?
>
>   Thank you very, very much for your time.
>
>    ---Lou
>
>
>    lfaustini at atlantech.net
>
>