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Topic: Bosch MAP (absolute pressure) sensor (Read 102 times) previous topic - next topic


Jan 13, 2020, 04:18 pm Last Edit: Jan 13, 2020, 05:35 pm by Ruzbynen
Hello guys.I want to make a boost gauge using a bosch map sensor. The thing is I don't know how to make the formula using the map command.Thanks!
The curve is as follows
Vout 0,39v = 0,11 bar
Vout 4,65V = 3,10 bar


This is a math problem.

Vout = a * bar + b
and you must solve for a and b

I hope you were able to do this type of math in high school.


A MAP sensor does not output a fixed voltage at a certain pressure,
but a certain ratio of it's supply at a given pressure.
The output voltage you listed might only be right at a 5.000volt supply.

MAP sensor questions (with code) come up every few months or so.
Use the search bar on top of this page.

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