Ease Enhanced OBD-II Powertrain Scanner ?
Are there other producs you would suggest?

I see what you mean by "you need to know what PCM has either commanded injectors off or went to min pulse width". Right now I see LTFT / STFT values that don't make too much sense.
After a while I'm at idle the fuel trims go negative without an apparent reason (?)
I have #36 injectors and at minimum pulse width they could still put too much fuel in the engine.

Also the averaged cells change depending on the wheater. It was 0% at 60F and +2/+3% at 40F.
I wonder if this is the result of a wrong tune or of wrong data from the scanner (???)

What a mess!