My tt setup blew up a while and i recently swapped in a new motor. I don't have the downstream O2 sensors hooked up, i don't even have cats. And ran the codes and these are the ones showing up. It says bank 1 and 2 both sensor 1's and i just want to make sure the sensor 1 is the downstream. everywhere i look i find something different.

Also the car feels a bit sluggish. i tried giving it some gas and it really didn't do much.