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3bar MAP scaling

Posted: March 7th, 2015, 12:45 pm
by 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?

Re: 3bar MAP scaling

Posted: March 7th, 2015, 6:43 pm
by 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

Re: 3bar MAP scaling

Posted: March 8th, 2015, 5:47 am
by 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?

Re: 3bar MAP scaling

Posted: March 8th, 2015, 5:57 am
by MPS dude
The sensor pid says 1,03 bar with the settings you gave me. Is that correct?

Re: 3bar MAP scaling

Posted: March 8th, 2015, 9:14 am
by 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.

Re: 3bar MAP scaling

Posted: March 8th, 2015, 12:02 pm
by MPS dude
Thanks, thats means that I'm on the mark.

Re: 3bar MAP scaling

Posted: January 16th, 2019, 9:38 am
by 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.