I've just run the LTFCDL macro in the Holden VR and VS Commodore 5.0L V8 definition and download the LTFC Cell Values from the ECU in my car. I have a 5.0L VP Calais with a 1227165 ECU running a 16183082 $12 binary.

I've noticed that the definitions within EFILive V4 for the downloaded cells 1 to 20 coincide with RPM vs MAP values of 1200 to 3200 RPM and 30 to 70 kpa.

Does this mean that the values extracted via the LTFCDL specifically represent LTF corrections applied to the RPM/MAP values as detailed above? This seems like a rather restrictive dataset, as I would have thought that RPM & MAP intersection outside the scope mentioned above would also be included in any LTF calculations.

If I'm off the mark, then does anyone know if the data in the 20 cells downloaded by the LTFCDL macro can be used to correct the VE tables? If so, how?

Thanks.