MAP sensor

[Todd Knighton]

Tom,
	Newark Electronics has the Motorola Sensors.  They're not to be put in
the engine compartment.  They're not ruggedized.  We've been putting
them inside the Motronics unit inside the car and they've worked well. 
the MPX4250A is a 2.5 bar absolute sensor, so it's good to about 20psi
and absolute vacuum.  They make a MPX4100A, I think that's the number,
for normally aspirated vehicles, never ordered that one.  These are all
temperature trimmed and compensated sensors so they aren't affected by
different temps like most MAPs are.
	Have just played with GM's and Honda's MAPs and have just guessed at
what's really going on, no data sheets available.

Todd Knighton
Protomotive Engineering

tom cloud wrote:
> 
> I would like to add MAP sensing to my system.  What's a good MAP to use,
> how much is it, where does one get it (if it's for a vehicle, I suppose
> a parts house), and how does it work?
> 
> I have looked in recent posts and found that oOn Tue, 03 Sep 1996, Todd
> Knighton <knighton at net-quest.com> wrote:  Motorola has a lot of data sheets
> on their MPX4250A, etc. line of pressure transducers we've been using.
> (Todd also noted in another post that he used a GM sensor that had an
> AC output.)
> 
> On Wed, 11 Sep 1996, James Weiler <james at brc.ubc.ca> wrote:  Ford's EEC-IV
> system (speed density) utilizes a MAP sensor that also doubles as a
> Barometric sensor.