I am trying to populate my histogram with data from my AEM 03-0300 wideband O2. I would like to update my VE table with this data from the graph.
The AEM sensor is connected through my serial port. The channels appear in my channel list as "AEM - AFR" and "AEM - EQ Ratio". The data from the sensor appears when logging.
I also have the histogram created and I am using the "AFR Ratio(math)" to verify the graph works as well.
It looks like everything is working so far.
How do revise the graph to calculate the % error from the wideband vs AFR commanded? Which PIDs should I use?
Would I create a custom math parameter, then replace the "AFR Ration(math)" in my graph with the custom one?