Load axis shifting as a correction factor

[Davidv]

Hi, 

Thought it might be a cool idea to, instead of adding correction factors to fuel seperately and ignition seperately. 
To be able to intercept/adjust the load axis value  before it reaches the table to look up the fuel/ignition values.

For example, 

lets say you are cruising along the highway and your car is running at bang on its target AFR. At a given TPS/MAP/RPM that is steady. 

But then, your intake manifold slowly heat soaks. This is happening after your IAT sensor so it cant be seen by ECU. 
So the actual mass of air entering the engine has decreased, but ECU has no visibility of this apart from seeing that the lambda value is incorrect.

If you use closed loop lambda to trim the fuel, you are correcting the fuel amount but then you end up doubly far away from the ideal ign timing for that airmass.
(timing stays the same but less airmass wants more timing, and then running it leaner back to goal AFR at less airmass wants more timing)

However instead of this. 
If you use closed loop lambda to trim the load axis instead. So its like its pushing the MAP value up or down the table for both ign and fuel.  
Then it corrects both your fuel and ignition closer to whats ideal for the reduced airmass.

So, you have a MAP value of 60kpa but then it looks at the table as though its at 55kpa.