MAP Sensor

[Matt Sale]

> 
> I just checked out a GM MAP sensor for my B&S system, and from a starting
> point of nothing, this is what I found out with a voltmeter and power 
> supply.
> 
>      |-----------------|
>      |      -----      |
>      |-----(o o o)-----|
>             -----
>             1 2 3
> 
> 		1 - Ground
>     		2 - Output
> 		3 - V+ (+5VDC)
> 
> Output appears linear from 0V at full vacuum to +5VDC at 1Atm.  I suspect
> the internals are a Motorola MPX51xx transducer or similar.  It works, so
> I'm not going to disembowel it.  The price was right (free) came off a 
> mid-80's Olds midsize 4-banger.
> 
> Cliff Ducharme
> 
They're made by Delco Electronics.

Matt Sale