O2 sensor trouble code

[dan34yo]

Where is the oxygen sensor 3 in bank 1 located? Trouble code PO147. I can only find three sensors. one on drivers side and one on passenger side and one right past the catalic convertor. Wich one? Thanks Dan

[maxwedge]

Originally Posted by dan34yo

Where is the oxygen sensor 3 in bank 1 located? Trouble code PO147. I can only find three sensors. one on drivers side and one on passenger side and one right past the catalic convertor. Wich one? Thanks Dan

After the cat, check for 12v to the sensor and a proper ground for the heater circuit before you replace it.