Replacement of Downstream (Bank1 Sensor 2) O2 Sensor on 2003-2007 Accord

I took on this repair because my 2003 Honda Accord 2.4L (LEV) had developed a P0141 (O2 Sensor Heater Circuit Malfunction (Bank1, Sensor2)) code. Its also worthy to note that while I waited for my replacement aftermarket Denso 234-4797 Oxygen Sensor to arrive from Amazon, the dreaded P0420 showed up. It’s dreaded because a lot of times it means your

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