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Prosport AFR/Lambda Controller

Posted: Tue Sep 16, 2025 7:05 pm
by Dacti
Hi, I’m currently having problems with the calibration of my Prosport controller with my UTCOMP PRO.

The UTCOMP v3.5+ calculator opens as a locked document, so I can’t use it for my controller.
Could somebody please help me with the calculation for my values?
And how can I use these values to display them as Lambda?

I only have the values from this document on page 3/3:

https://www.merx-tuning.de/media/9f/cd/ ... nzeige.pdf

Thanks for the help and greetings from Germany

-Dominik

Re: Prosport AFR/Lambda Controller

Posted: Wed Sep 17, 2025 9:39 am
by ArT
Hi, based on pdf:

0V = 10 AFR
4.99V = 19,98 AFR

it will give params:
a = 2.0
b = 10.0

Re: Prosport AFR/Lambda Controller

Posted: Wed Sep 24, 2025 4:30 pm
by Dacti
Thank you for your help!

How did you calculate the values?

Re: Prosport AFR/Lambda Controller

Posted: Thu Sep 25, 2025 9:36 am
by ArT
for MAP and pressures you can use simple calculator from UTCOMP app available in settings -> advanced -> pressure -> calculator and use AFR instead of bar.