MAP Sensor

[Mark Wilcutts]

On 19 Nov 1998, Tom Parker wrote:
> What does the output from a MAP sesnor look like? I understand it is a voltage
> between 0 and 5v, but how do you wire it up? Assuming I have a MAP sensor of
> unknown origin, how do I go about indentifying the wires?
>
> With three wires, and the probable fact that it is a voltage divider much like
> a pot, I suppose I could work it out with an ohm meter.

There are a couple of different types, some have DC 0-5 volts, some have a
frequency output. They are based on either strain gage or capacitive
technology, in either case they are powered sensors with electronics in
them, and not potentiometers.