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Versatuner desired lambda is always 1 in the logs
Posted: September 3rd, 2026, 1:35 pm
by betancourtl
Anyone knows why desired lambda is always 1 in the logs?
https://www.reddit.com/r/ECU_Tuning/com ... _always_1/
Re: Versatuner desired lambda is always 1 in the logs
Posted: September 3rd, 2026, 6:20 pm
by CrazyCanadian
It's not a Versatuner issue. I've seen this with OEM scan tools. You can try playing with some of the closed loop/open loop settings to get the car in open loop all the time and see if that changes things. Otherwise you wont be able to do your calculations in megalog viewer. You'll have to do it manually in an excell spread sheet.
Re: Versatuner desired lambda is always 1 in the logs
Posted: September 4th, 2026, 7:37 am
by xbrandino
Do you have any logs you can post for us to see?