Answer it is preset at the factory and the computer adjustes it as necesary. No adjustment possible on distributorless ignitions.
Problem with my 2002 chevy malibu3.1l v6repair work done prior = engine replacement, used but good. New water pump, t-stat, intake gaskets, radiator, hoses and coolant temp sensor. Multiple t-stats from different suppliers including trying to make a long story short...'o2 chevy malibu 3.1l overheated and blew motor.
Replaced with a good one from a buick century. Prior to installation, replaced intake gaskets, t-stat, w/p, plugs, oil pan gaskets and the timing cover (due to slight pulley mounting difference) start and run engine in bay and all is good. Road test good.
Give to customer and overheats in first few miles.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.