Can the Speeduino be used just to manage the O2 sensor together with the features like AFR ,without replacing the whole ECU of the current setup
I have a wide band aftermarket AFR sensor and gauge to monitor on dash together with a manifold pressure sensor .
However I do have an HHO system running in my vehicle and would like to use Speeduino to do some O2 management .
Unfortunately my ECU being A11001A being the Subaru Leagcy GX 2.5L same as Subaru Liberty for the ADM market is one of those ECU's that were and still is a closed shop .
Very few high level engineers have cracked this ECU so it is difficult to manage the mapping as a DIY enthusiast .
I am hoping parts of Speeduino functionality can be used to replace the old school efie units and learn more about the arduino ECU as I go .
I have access to Arduino Uno and a number of Arduino due boards - can these be used for the Speeduino code .
Thanks in advance