Bank 2, sensor 1 Location.

[B E N]

That depends, most sites and service manuals take into consideration that you make the determination looking at the front of the engine.

Manufacturers identified the engine sides differently. Some manufacturers may assign the left side of the engine as Bank 1 and the right as Bank 2. The best way to determine which side is Bank 1 or Bank 2 is to check the vehicle's service manual. On most vehicles, Bank 1 is referring to the side of the engine where the #1 cylinder is located.
https://autocodes.com/articles/8/what-is-bank-1-and-bank-2.html

The side of the vehicle is always determined from the driving position. You pretty much restated what I said.

Calling a side of the vehicle driver or passenger doesn't really work in the industry, since there are both left hand and right hand drive vehicles.

 

[MTF]

The side of the vehicle is always determined from the driving position. You pretty much restated what I said.

Calling a side of the vehicle driver or passenger doesn't really work in the industry, since there are both left hand and right hand drive vehicles.

No, I didn't. Two different out comes when talking about vehicle and engine.

 

[Marspool]

I’ve found out when it comes to 02 sensors on Gen 1’s, there are 2x on each side. It’s best to do all 4 at the same time.

 

[MTF]

All OBDII vehicles have four.

I'm not sure why there are so many with O2 problems.
Luckily, I never had one with any of my vehicles even the ones my wife and daughter own.
Knock on wood, LOL, watch I just jinxed myself now.
But I also don't screw around if I do exhaust work either.

All I can say is PERMIUM GASOLINE at all times.
I do get it that some states you're screwed.

 

[kidkotic2001]

I'm doing bank 2 sensor 2 I have p2272 the downstream. Those upstreams look hard cuz of how high they are America no room.