Lamda table - it is AFR table, dont confuse people. ECU know how much air MAF shows and by AFR in the lamda map, calculates how much IQ to inject.

thanks for usefull information

Nice thread thx.
Some factors from your list i had missing, now i have everything. :thumbup:

Super! :clap:
Thanks for the info :D

Thanks

thanks ! very useful

Relic wrote:...
Crankshaft Degrees (factor 0.023437 offset 0) ....no idea why this obscure factor is used.
...

Thanks for good info, I can try explain how you can get exact factor for °CD for your exact car.
You need good diagnostic software (e.g. for peugeot PP2000), best is manufacturer specific diagnostic.

Start your car, and using diagnostics look for real time injection timing values, start of injection and injection.. whatever you need, write down angles you see for some specific rpm-s.. then go to your map and look what value represents it.

For example 29°BTDC in my case was 1150 value in maps so calculate like this:
1/(1150/29) = 0,025217..
this is my factor diagnostic software used to interpret crankshaft sensor data.

Had I used obscure factor it would not be 29°but 27° BTDC, at end of day it does not matter as long as you use same factors for SOI, DOI and EOI calculation.

IMHO, VAG concern uses 0.0234375 factor, and VAG is most tuned so it could be source of this obscurity..

useful

I bought one map file for my car`s EDC17 ECU , and there also to represent the SOI in degrees, have been used 0.02197265625 as factor. No idea how that number come to be...
Even I have access to GDS software, I can not get back any live SOI data and try the upper math suggestion. Still thank for the tip!
What I know so far, lambda should be in raw simplified form like AFR/14.7. Like 17:1 (AFR) / 14.7 => 1.16 - LAMB.