Ok, I have read threads all over this forum, at Romraider, injector dynamics and other places.
Watched videos on youtube, Haltech, etc.
They all explain small pieces of how to tune: Enrichment tables, MAF adjust, VE, timing advance, knock correction, VVT, etc.
However I cannot find even ONE example of how the ECU actually WORKS!
(and I dont mean: Microcontroller programming 101 - I got that)
In my business there is always a "Systems Engineering Report" that explains whole systems or various subsystems in extreme detail.
For example: Where is the equation that gives the final timing advance?
e.g.: Final_Timing = Base_timing + Table1 + Table2 + Learn_value1 - Knock_correction - Learn_value2 +/- etc, etc.
And I know there are also flow-charts and state-diagrams that are required to understand all of this.
An example state-diagram chart might be: "How the ECU transitions between OL & CL"
I would expect that most of the tuners out there have a good idea of how it works, but where is it explained on paper?
When I open a ROM in Romraider, there are very good explanations of each table/parameter, but you have to open one table at a time and read the explanation.
There is not even a list of: "Here are the most important timing tables/parameters in order of importance"
It seems the only way to learn this stuff is to just randomly click on tables and read the explanation while slowly trying to understand how each table is related to other tables.
It is kind of like putting together a jigsaw puzzle without the picture on the box...
Any books or obscure threads that give a better explanation?
I found the Online Toyota technical reference website, but you need to pay to access any data, so I dont know if what I am looking for is even there.
