MAF Sensor Filtering
Look in my 3000hz thread, I posted some info that is relavent to what your looking for..
As far as I can tell It relates to Load or G/S When I converted the value to that, it matched pretty well to a table that was posted on the thread.
I have my doubts that it converted to a HZ frequency simply because the frequency is not as linear as the values indicate in its settings.
As far as I can tell It relates to Load or G/S When I converted the value to that, it matched pretty well to a table that was posted on the thread.
I have my doubts that it converted to a HZ frequency simply because the frequency is not as linear as the values indicate in its settings.
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Originally Posted by MalibuJack
I made an interesting observation today in ECUFlash.. I may be way off, but I was playing with the scaling settings and decided to make one for MAFHz (x/6.29 & 6.29*x, uInt16, little endian, it suffers from a slight rounding error though)
When I did this, I noticed that the g/s values started to correlate in the with MAFHz I have seen on the roms (Maf scaling and MAF Smoothing tables) Although I'm not completely sure this is even correct, the values in the left column for HZ, seem to correlate real closely..
Does anyone have any data on a rough g/s vs MAF HZ that they can post? Even if its inferrential data from logs off the ECU. The reason I'm asking is I think it makes that missing link on how to work with troublesome maf anomolies directly with the ECU.
I also think the 6.29 value is derived from the MAF Size in some way, and therefore altering the size obviously will alter the MAF value vs digital raw value.
When I did this, I noticed that the g/s values started to correlate in the with MAFHz I have seen on the roms (Maf scaling and MAF Smoothing tables) Although I'm not completely sure this is even correct, the values in the left column for HZ, seem to correlate real closely..
Does anyone have any data on a rough g/s vs MAF HZ that they can post? Even if its inferrential data from logs off the ECU. The reason I'm asking is I think it makes that missing link on how to work with troublesome maf anomolies directly with the ECU.
I also think the 6.29 value is derived from the MAF Size in some way, and therefore altering the size obviously will alter the MAF value vs digital raw value.
can we talk more about this.
If i go into Evoscan and modify the MAFhtz formula to be x/6.29 & 6.29*x, uInt16, little endian would i be able to see the "load value" on the MAF table? or is this change made in the parent directory of ECUflash.
It seems as if every time i think i have it figured out something else happens and the problem arises again. I am contiplating just running the Car in Open loop with user defined fueling.
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