boost pressure shows incorrectly

[Mgedix]

Hi
the boost pressure shows incorrectly, I have a boost pressure of 1.4-1.6 bar, but the display shows 2.3 bar. how do i set it right?

thanks

[ArT]

I guess you are using external MAP sensor. You need to provide sensor data in UTCOMP settings (settings -> advanced -> pressures -> boost). If you do not know scaling data I can help you scale it. Do you have possibility to check boost pressure via obd2? We will need 2 measurements points pressure/voltage.

[Mgedix]

Hi
at 0.52v at Ut-comp, the opcom shows me 102 Kpa, so I think the ambient pressure must be subtracted, when idling I have negative boost pressure, the display shows that -0.9 bar. Only when I have boost pressure does it show me too much.

[ArT]

please let me know your "a" and "b" parameters in settings for boost sensor and please fill below table, I'll check your scaling:

pressure from opcom (kpA) | voltage on UTCOMP input
100kPa = .... volts
200kPa = ... volts

it does not have to be exactly 100kPa or 200kPa