This is for a '96 with a 351. It appears to be running fine. However, my inspection is due and Houston being a smog place has these new strict emmision inspections, so I have to fix this. I have my handy dandy ODB II code scanner and I figured out what the code is; PO141, Bank 1 sensor 2 heater circuit malfunction. Per the Chiltons: Heated Oxygen Sensor Heater (HTR 12) circuit malfunction. I know I have two O2 sensors on the pipe. Does the "HTR 12" mean a specific sensor, or am I totally off base with this?