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Bank 1 is always the same side of the engine as the number 1 cylinder. Bank 2 is always the other side of the engine. Sensor 1 is always before the catalytic converter. Sensor 2 is always after the catalytic converter.
Cylinder 1 is on the passenger side on a 5.4 liter.
bank 1 sensor 1 is driver side exhaust pipe in front of catalyticconverter, bank 1 sensor 2 is drivers side exhaust pipe behind catalyticconverter, bank 2 sensor 1 is passenger side exhaust pipe in front of catalyticconverter, bank 2 sensor 2 is passenger side exhaust pipe behindcatalyticconverter.
Bank 1 is always the same side as the number one cylinder. Bank 2 is the other side of the engine. Sensor 1 is always before the catalytic converter and Sensor 2 is always after the catalytic converter.
If you have a 3.4 liter V-6 the #1 cylinder is on the passenger side. If you have the 4.7 liter V-8 the #1 cylinder is on the drivers side.
the bank one sensor is the sensor is in the bank of cylinder on the drivers side of the engine this is the cylinder bankl that has cylinder #1 in it, and the bank 2 sensor is on the passenger side bank of engine cylinders,
Need more information but here is where all your O2 sensors are located
Bank 1 Sensor 1 - Driver's side, before catalytic converterBank 1 Sensor 2 - Driver's side, after catalytic converter Bank 2 Sensor 1 - Passenger side, before catalytic converter Bank 2 Sensor 2 - Passenger side, after catalytic converter Thank you for using fixya and good luck
Bank 1 sensor 1
Bank 2 sensor 1
Bank 1 sensor 2
Bank 2 sensor 2
some manufacturers use a kind of shorthand that reads different, but means the same thing:
Sensor 1/1 or O2s 1/1
Sensor 2/1 or O2s 2/1
Sensor 1/2 or O2s 1/2
Sensor 2/2 or O2s 2/2
Bank 1 is always the side of the engine where cylinder number 1 is located and, of coarse, Bank 2 is the opposite side.
On a 4 cylinder engine, there is only 1 bank and it is always referred to as Bank 1.
Sensor 1 is always the upstream sensor (The one located BEFORE the catalytic converter)
Sensor 2 is always the downstream sensor (the one that is located AFTER the catalytic converter.
Most GM engines have #1 cylinder located on the left bank, (or Driver's Side) of the engine,
So, the answer to your question would be that you are looking for the sensor located before the catalytic converter on the right (or Passenger Side) of the truck.
1/1 is upstream sensor on the number 1 cylinder side, 1/2 is the downstream of the number 1 cylinder side, 2/1 is the upstream of the number 2 cylinder side, 2/2 is the downstream of the number 2 cylinder side. Hope this helps.