no, iphone's "car scanner"

ok, today we switch MAF sensor from my friends the same volvo, and nothing, the same problem.
But today I saw stranger thing on computer.

when the engine was a little colder (arround 70-80 degresese C) it was that:
https://images84.fotosik.pl/1038/5d5a0ba0d8ae6616med.jpg

and when it was a liitle ...

yes, I disconected battery for +- 10 minutes, and still nothing

Hello
I'm already fighting a bit, that's why I decided to make a separate topic here.
Right to the point.
patient 850 2.5 20V 170HP 1997
Front Lambda sensor - NEW (original bosch according to No.)
Rear Lambda NEW (original bosch according to No.)

symptoms:
permanent OPEN LOOP even when engine is ...