Honda Repair: 2003 honda accord oxygen sensor, o2 sensors, o2 sensor

Question
My '03 Accord is a 4-cyl EX, which I think only has (1) O2 sensor (mystery given the code below).  I can get to the sensor no problem but the pigtail goes through a grommet in the chassis and I can't even see the end of the cable.  Has anyone ever changed one of these?  Any suggestions?  Error code was P0141 - O2 sensor heater circuit malfunction (bank 1 sensor 2)

Answer
Hi bill, yes the wires go through a grommet into the chassis of the car. You should be able to pull the wires down and there should be a Grey plug, 4-pin, connector. Simply disconnect and reconnect your new O2 sensor. Of course, before installing the new one remove the old and thread in the new one prior to connecting to the plug. That way you don't twist the wires and potentially damage the new O2 sensor. By the way your car has (2) O2 sensors and this one is the most difficult to replace. I think you should be able to handle it! Good luck...