OBD reported Load vs ECU Load

[mangosmoothie]

I live at 5000 feet elevation. I believe the load I log is corrected for normal temp/pressure. The ECU uses uncorrected load for spark and vct calculations. So this makes datalogging and tuning a little difficult since I have to guess what load the ECU is using.


When I had my NC miata, a similar issue presented itself. LoadAbs (OBD) = (AirDensity * LoadScaled) / AirDensityNTP
where airDensityNTP = 0.0012, and LoadScaled = load corrected by the load scaling table.

So, in short, I believe the OBD load pid is corrected. The ECU uses uncorrected load for spark and vct calculations. So this makes datalogging and tuning a little difficult since I have to guess what load the ECU is using.

Can we try and get an uncorrected load to log?

[mituc]

What you're basically describing is pretty much the difference between calculated and absolute load.

[mangosmoothie]

only absolute load is available to log. It would be nice if calculated load was added then.