Location of bank 1 sensor 1 o2 sensor

sensor 2 is always downstream of the Cat.

Which 02 sensor is bank 1 sensor 2? Bank 1 Sensor 1 is the first sensor closest to the engine. On Bank 1 means it is at the engine side with cylinders 1, 3, 5, 7, etc. Bank 1 Sensor 2 is the second sensor on the engine's exhaust pipe, usually behind the catalytic converter.
Jan 26, 2022

https://www.google.com/search?q=1996+acura+3.2+tl%2C+bank+1+sensor+2+location

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Sensor 2 is always after the catalytic converter. Bank 2 is the bank that does not have Cylinder #1. Ford firing diagram https://ricksfreeautorepairadvice.com/3-0-v6-ford-firing-order/

They should be a welded receptacle - one just in front of the CAT and one just after the CAT. They usually have a teflon wire leading to them which is distinctly different than other wiring in the car.

bank one is left side top of engine standing looking at it , O2 sensor is located on exhaust manifold there is one on each manifold (right-left)

which engine there are 3,

G16, J20 and H25. 4 bank , 4bang, v6

all 02s have a connector about 1 foot from sensor. all.

my guess is you have the SOB, v6, it is a pistol

it looks like the engineer was asked, see if you can make it near impossible to change ! then make it the only connector on the

car with the lock , working backwards ! HE WON.



here is 1 page, just for this, issue, only one on the web. btw.

http://www.fixkick.com/sensors/O2%20sensor/25L/25L-O2-H3LL.html



getting them off the hidden brackets, is no JOY

takes like an hour each.



enjoy

and do ask questions.

replace only the front, (unless smog man makes you do rear)

or you get P042x codes,.

where, as ON Car?
you forgot to post engine option, so nobody can anwer easy
but Sensor 1 is the sensor ,closest to cylinder 1.
Bank 1 is the bank closes to cylinder 1.
on I4 engines Cyl #1 is closest to the cam, and crank pulleys.
on V6 /V8 Cylinder 1 is that bank that is most forward.
on V egines, on bank sits forward, one rear.
if you told engine , size and displacement, this be snap.
or look it up on alldata.com
or google your real engine type.
guessing, USA>....???

3.2 L J32A3 (258 hp) V6
3.5 L J35A8 (286 hp) V6 (Type-S only)

J32
first google hit
shows (ASCII art, kwel)
No it is

1-2-3
4-5-6

Front of car

so on this V6 , bank 1 is rear, right. see? it above?
and B1S 1 is rear bank, sensor top. sensor closest to engine head.
sensor 2 is always behind CAT, in fact its the CAT monitor sensor.

at a 100k mile replace both V6, top sensors. for max MPG.
they dont last 300k like engines,.
the rear is leave for smog man kicks in behind, only. p420x...

bank one sensor 1 is the bank of cylinders that number 1 spark plug is located in, bank 2 the other side, this assumes u have a V8, the sensor one location is the sensors that are BEFORE THE CATALYTIC CONVERTER, the sensors referred to as sensor 2 are after the ones AFTER THE CATALYTIC CONVERTER IN THE EXHAUST SYSTEM.

O2 sensor is located on your exhaust around the catalytic converters

Your car is equipped with a diagnostic system called OBD II. You can purchase a code reader and use it to find which O2 sensor is causing the problem. You probably have 4 sensors. 2 in front of the converter and 2 behind. The code reader will indicate something like "SEN 1 BANK 1." This means O2 sensor in front of the cat. on the side of the engine that contains cylinder 1. You may see "SEN 2 BANK 1" "SEN 1 BANCK 2" "SEN 2 BANK 2" Bank 2 indicates oppisite side of No.1 cylinder. Hope this helps

I think the question is where is the bank 2 precat sensor on the 2.8 v6 passat. I have only found bank 1......????