bank1 sensor 2 O2 sensor

[koltonv]

i'm pulling 2 errorsThe DTC codes were: P0325 Knock Sensor 1 Circuit Malfunction Bank 1 or 1 Sensor

P0138 02 Sensor Circuit High Volts Bank 1 Sensor 2does anyone know where this O2 sensor is?

I guess i should say it's a 99 I30t

[94whitert]

Back of the engine after the cat. on a 00 I30(if standing in front of the car.) Not sure if it is the same on a 99 though.