All O2 sensors are threaded into the exhaust system at various points. Bank 2 on that vehicle would be on the passenger side of the engine. Bank 2 sensor 1 would be the first O2 sensor in the exhaust system on the passenger side.
Bank 1 is the drivers side of the engine and sensor 1 will be the closest O2 sensor thats in the exhaust pipe where it bolts to the engine exhaust manifold.
it is screwd into the exhaust somewhere near the converter
behind the converter on left side
It's the sensor after the cat on the passenger side
Bank 2 is the side of the engine where the #2 spark plug is. On my 99 Silverado it's on the passenger side.
Bank 1 is the drivers side of the engine and bank 2 is the other side.
Trouble code P0141 means:O2 sensor heater circuit malfunction (Bank 1 Sensor 2)
Bank 1 on a Chevy is the drivers side. Sensor 1 is located in front of the catalytic convertor and sensor 2 is after the converter. Each side has 2 O2 sensors.
It would be the sensor after the catalytic converter.
drivers side second one back by transmission
bank 2 is opposite #1 cylinder and sensor 1 is front.
Need more info, is this the 4 cylinder or 6 cylinder engine and which sensor on bank 1.