What are you using to measure Mass Air Flow? Why doesn't measured MAF not match your input MAF since you are telling it how much airflow is there based upon the Frequency it's reading?
But In my hpt file， 屏幕截图 2023-03-15 222522.png
the input MAF different with Measured MAF，this confused me. In my understanding, they should be similar.
I don't know anything about your ECM but a couple of possibilities.
I'm not sure what your filter is doing. Maybe it's filtering out a lot of your data and throwing the average off?
Sometimes the sensor/SAE channel isn't the one to use. Maybe see if you have any other options and not use the generic sensor.
I don't know of any other way to "measure" the airflow other than MAF frequency. Maybe that "airflow" is calculated from the VE and that needs a lot of work. Is this a mostly stock vehicle?
how are u adjusting the MAF ? u cant use mass airflow g/s against the hz of the maf to correct it, if im seeing what ur trying to do right ? u need to use a wideband to do the OL areas or u can use the trims for the CL areas to get the fueling closer to commanded which gets airflow closer
MAF Tuning question？？？
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