Tuning (fuel) by obd

[mdfk]

How to tune fuel tables for obr interface? There are AFM Flow and AFM Fuel ( in some maps/ecu). Anybody can say something about this?

[KTuner]

If you're using a proper intake system that works with the factory MAF you won't need to touch either of those and you can command fuel by altering the WOT Enrichment tables.

[mdfk]

Ok but when I change intake system how to tune AFM because AFR not good. Somebody can tell

[KTuner]

The AFM vs flow map on the Mass Airflow tab.

[mdfk]

I know where but how to do it correctly. Some procedures for AFM please.

For SD it's ~easy. AFR form log/graph and we know +/- fuel values.
But for AFM? Turn off CL and try fo set lambda=1 for every MAF voltage - correct?

[KTuner]

The MAF curve is already established. You want to adjust the flow values to get back to correct a/f values while maintaining the curve. I'm sorry I can't help you further, but we don't teach tuning. There should be some good documentation online about mass airflow and tuning in general.