Update: The P1441 code is fixed. My solenoid was stuck open. Couldn't get the thing to shut until I took a hammer to it That was after I replaced it though

Was wondering which sensor is bank1 sensor 1. The first sensor ont he drivers side? It is reading considerably lower than the other 3 sensors and I wasn't thinkingit was normal. I've also noticed if I goose the throttle its kinda hesitant, almost like its getting too much air, not enough fuel. Any way to test an 02 sensor.