In the e-manage software is there a user definable airflow calibration curve?
I don't know if this relates but on the PFC, your problem is less what the MAF voltage data points are on the airflow curve (they default to spacing every 0.16v), but where your load breakpoints are.
On all my maps, I don't use uniform spacing of load breakpoints specifically for the reason you mentioned. I try and group points around where most events happen in normal driving. I tend to space load breakpoints closely during cruise, which would be MAF voltages under 2.0v, then make the spacing wide in the part throttle range, then colser again in the WOT range.
I don't know if this relates but on the PFC, your problem is less what the MAF voltage data points are on the airflow curve (they default to spacing every 0.16v), but where your load breakpoints are.
On all my maps, I don't use uniform spacing of load breakpoints specifically for the reason you mentioned. I try and group points around where most events happen in normal driving. I tend to space load breakpoints closely during cruise, which would be MAF voltages under 2.0v, then make the spacing wide in the part throttle range, then colser again in the WOT range.
