Ok, that makes some sense... so when it's say going between -5 and -10 under normal driving conditions... you say it's taking away fuel, but like... What is it subracting fuel from? Like how much the injectors are spraying each cycle? what does the condition of zero represent? and what units is that measured in? -23.4... what?

Also, how does LTFT differ from Short Term Fuel Trim?

Sorry Im full of questions trying to figure this out, lol.