log AFR and Lamda

[JaceDaniel83]

is it possible to log afr and lambda off a single wideband? I have AFR logging but was asked to log Lamda also so Im not sure if its possible? Ive tried adding it the same as the afr and changing the value to lambda but no dice. I wasnt sure if I just needed to log them seperate. Change the values before each log and back, etc. Thank you for any help

[4wheelinls1]

AFR and Lambda are the same thing, you just need the Stoic value of the fuel you are using. You can make a math channel if needed to convert Lambda to AFR or the other. PULP 98 in Australia is 14.64, US I believe is 14:1 due to 10% ethanol E85 is 9.9:1.

So for PULP .8 Lambda. 14.64*.8=11.7 AFR

[orange ss]

I log both using the inputs on my MPVI Pro, just split the w/b analog circuit and configure the inputs appropriately.