3bar MAP scaling

[MPS dude]

How do I exact scale the 3bar MAP sensor (845) in Versatuner. I have found a lot of items in different forums, but the are all Cobb app.
I understand that boost has to be near 0, but which boost? How do I moniter that? Which is Scalar A, B, etc in Versatuner?
Can somebody help me with this?

[boloteo]

set the
3 (charts)x map scale aditives : 6,353
3 (charts)x map scale base multiplier :65,88
3 (charts) x map scale second multiplier : 1

and you log it from the Bosch 3 bar map sensor pid

[MPS dude]

Thxs boloteo! And what value should the Bosch 3 bar map sensor pid give with KOEO? should this be 0 or should it be 1bar?

[MPS dude]

The sensor pid says 1,03 bar with the settings you gave me. Is that correct?

[Steve @ VersaTune]

It should be very close to your barometer reading with the engine off. If you are at sea level, ambient baro should be around 1.00 bar.+/- depending on weather.

[MPS dude]

Thanks, thats means that I'm on the mark.

[manselainen]

My laptop was changed (and I had built and replaced engine) and was wondering why same Bosch 3 bar MAP was now reading low on logs. Did not remember that it needs to be selected in Dashboard - MAP - Customize.