I know what the code means, but does anyone know what some of the problems might be, I searched and found maybe an exhaust leak, or bad O2 sensor. I know i dont have an exhaust leak, and I know the sensor is good. I just installed LT headers and an O/r H pipe and I knew the sensor would come on b/c of the after cat o2 sensors but the code is showing the befor cat sensor, any advice would be appreciated.

 

Had the exact same problem but the other O2 sensor. Its the one on the passenger side of the motor before the cats. Just go buy a new one and replace it. I did that and it fixed it. It just means your O2 sensor is on its way out the door.

 

Did you install mil eliminators?

 

No didnt install mil eliminators but like I said its showing a problem with the drivers side O2 sensor that is before the cats, not the after cat sensor.