Maf G/S...commanded vs logged

[mrmonk7663]

In the Gen2 mazdaspeed the maf table is a fixed voltage with an editable g/s. The logged g/s is often different from the commanded g/s for a given voltage point. Why is that?

Also, the ltft and stft are corrections factors applied for fueling to reach a target AFR...but are they applied to the commanded g/s or the logged g/s?. Whatever the answer is, it would be good to provide this info in the ATR helpfile for clarification purposes in my opinion. I look forward to your response

[tastyratz]

I wanted this to rise TTT because I also would like some feedback here

[chaser27]

I'm not sure, but I think there are some correction factors that the ECU applies based on IAT. The logged values shouldn't be far off what's in the table. Are you seeing a wide variance?

I'd also assume the LTFT + STFT correction is applied to the "corrected" value.

[tastyratz]

The issue is that the logged value does not correspond with the row because there is a calculation delay which makes it inaccurate. It's also not a known predictable so you can't just shift a row or 2 for example