MAP Sensor

[Clare Snyder]

Raymond Brantley wrote:
> 
> Hi all , I have a question. Ford MAP/BAP sensors produce a frequency
> relative to pressure. So you cannot just read the voltage like a TPS.
> You need a frequency meter. Are GM's different?
> 
> Raymond Brantley
Yes.
In fact, sometimes the "frequency" type can be read with a voltmeter as
well. If the pulse width is constant, and the frequency changes, simple
integration with a R-C circuit will give you voltage. You might not even
need integration.
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