Hi!
I'm new in this car electronics and diags, tuning etc.
I'm interested how to correct analyze the fuel quantity correction and make a decision is the value acceptable or not,
is the injector good or bad or what is actually happening there?
For what is that "Fuel quantity correction" there for?

I'm also interested as a new car electronic technicians where can I buy or download some
documentation with the theme how to correct make a diagnostic with a diag tool, I mean what that values are for etc...

Thanks for any advice.
My best regards.