Location of Oxygen Sensor? (Bank 1 Sensor 1)

Hi,

I have the 1.4L or Daewoo GM Aveo. My Engine is SOHC type. Maybe I know where is the location for O2 Sensor 1. My OBDII showing P0131.

Thanks!

The bank 1 sensor 1 oxygen sensor is the first sensor in your exhaust after the engine. It is before the catalytic converter.