DI flow rate adjustment

[Kodename47]

Is the table definitely MAF vs FRP?

How did you adjust it in the end? Can you post before and after to demonstrate?
@jamesm @mad_sb

[jamesm]

Originally Posted by Kodename47

Is the table definitely MAF vs FRP?

How did you adjust it in the end? Can you post before and after to demonstrate?
@jamesm @mad_sb

There'll be a screencast out soon. By the end of the weekend. The table is maf voltage vs di pump pressure.

[ztan]

Originally Posted by Kodename47

Is the table definitely MAF vs FRP?

How did you adjust it in the end? Can you post before and after to demonstrate?
@jamesm @mad_sb

The table y-axis is not MAF_V (even though it seems to work for James).

The value passed to the GDI flow table is at FFF887E8 - this value often logs at 0.6 and up, you'd rarely see a MAF_V below 1. I think the most efficient way to use this table is to log the addresses which are passed directly to the 3D lookup routine for the table (addresses above).

Looking at the logs, FFF887E8 actually has a better correlation with MAP than with MAF.

[jamesm]

Originally Posted by ztan

The table y-axis is not MAF_V (even though it seems to work for James).

The value passed to the GDI flow table is at FFF887E8 - this value often logs at 0.6 and up, you'd rarely see a MAF_V below 1. I think the most efficient way to use this table is to log the addresses which are passed directly to the 3D lookup routine for the table (addresses above).

Looking at the logs, FFF887E8 actually has a better correlation with MAP than with MAF.

I wondered why it scaled down to 0.6. I rescaled the axis to make more sense and it definitely works to eliminate fueling error against the maf. It at least seems as though they directly correlate.