J James New member Nov 14, 2010 #1 hey there. I have a 2004 honda civic. I scaned it with my actron obd2 scanner and got a p0135- O2 circuit malfunction (Bank 1 Sensor 1) could somebody please tell me which sensor that is? or maybe how to test it?? Thanks
hey there. I have a 2004 honda civic. I scaned it with my actron obd2 scanner and got a p0135- O2 circuit malfunction (Bank 1 Sensor 1) could somebody please tell me which sensor that is? or maybe how to test it?? Thanks