Need some advice on this 01 Saturn (1g8jw82r11y528818 3.0l LW2)Check engine light on with P0172/P0175 (fuel trim rich Bank1 sen 1 and Bank2 sen1 ). Data showing .99v at idle and will go as high as 3.0v on accel, for both sensors. Voltage on the O2 disconnected... Login to read more.