My scope picture is the load pwm where hz is measured and length of pulce, ideling at the pickture and trottle at the measure lineEverything I've seen about the wideband AF ratio O2 sensor says it's characteristics are opposite of the old standard sensor.
Have you induced a rich and lean conditions and observed the outputs? Under normal conditions the wideband ideal is around 3.x V and the older O2 sensors is about 0.45V.
Which sensor (model number) are you using and do you have the output specifications ? It appears you want a level translation. If you want to go from 2 to 4 volts (wideband A/F O2 sensors) to 0.1 to 0.8 volts, it can be done.
There are plenty of youtube videos out there describing the sensors, what their outputs look like, and how to test them. By testing them, I'm not saying yours is good or bad, but how their output responds to varying stimuli. The display on your oscilloscope didn't look like any that were on the youtube videos.
Put yourself in the shoes of those here that might be willing to help you ... for no compensation. What do you think the first words in my mind were when I read it?
i dont know what the end valued need to be to get the ecu doing a propper job thats why i ask for a circuit that is adjusable at load pwm and idle pwm, between this points it has to be linear.
Adjustable according to pwm need to be an offset to the orginal o2 sensor voltage (voltage follower with an adjustable offset)
Then if the orginale o2 sensor signal is corect leav the pots at siro and no changes is made to the signal
This is not a forum to find errors and fixes for cars its about circuits
im a educated car mechanic with big interest for electronicks and automation and dont ask for help to find any errors.
I ask for help to make a circuit to offset the o2 sensor signal baced on the load pwm signal