Oh okay, thanks man.
~0V from the post cat sensor I guess could make sense, because the oxygen content is supposed to go down (it's burned in the cat afterall), and as I understand lower voltage = lower oxygen concentration
Since I have this super strong unburned gas smell I assume my car likes to spew out a bit of extra gas for whatever reason and that certainly helps consume oxygen too.
Now the load really bothers me though. The number clearly isn't directly correlated to throttle position, so that means it's being calculated off some different measured parameters. Except my OBD2 scanner is only able to track MAF, not MAP or barometric pressure. So what the hell is it using the calculate load? The ECU cannot possibly be doing stupid speed-density calculations and then trying to correlate that with MAF readings, that would be completely retarded. Since I can't read MAP, I have no idea what's really going on, but I think my passenger told me that when I floored it on the highway at 3500rpm instead of in the 2000s, the "load" was only 69%. I hope I don't have an air filter that has an inch thick layer of dirt stuck to it lol.
Smog is only going to get tougher to pass, so I think I'll replace the 2 sensors used for fuel trim sometime before the next smog check. Still tracking fuel economy and oil consumption of course, when I get a better idea of that I'll figure out what to do.
By the way, in 1st gear my car is a bit jerky, as in when it's engine braking then I step on the throttle, instead of bam kick of power, there's kick, back off slightly, resume power. Is this just a normal cable throttle thing, or is it an indication of dirty MAF/something else?