Question about 1998 Toyota Avalon

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Location of bank 1 sensor 1 o2 sensor 1998 Toyota Avanlon

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In the exhaust head pipe of the engine before the first catalytic converter in the engine cylinder bank that contains the number one cylinder.

Posted on Jan 06, 2017

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Posted on Jan 02, 2017

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I need to replace bank 1 senor 1 on a 2005 Avalon and bank 1 senor 2.


bank 1 is the front bank closest to the grill
sensor 1 is the heated oxygen sensor and is located in the manifold or before the cat converter
sensor 2 is the oxygen sensor and is located after the cat converter
get a specialist oxygen sensor tool so that the small wires are not damaged during repalcement

Sep 26, 2016 | 2005 Toyota Avalon

1 Answer

Where is Bank 2 sensor 1 oxygen sensor on my 2007 tundra 5.7


Bank 1 is always the sameside of the engine as the number one cylinder.
Bank 2 is always the other side of the engine.
Sensor 1 is always before the cat
sensor 2 is always after the cat.

Cylinder number 1 on this engine is on the drivers side. So bank 2 is the passenger side of the engine and sensor 1 will be located before the catalytic converter.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Nov 17, 2015 | 2007 Toyota Tundra Limited

1 Answer

Need to replace the Oxygen sensor at location bank 2 sensor 1 where is the location of this sensor.


find #1 cylinder that side is bank 1, bank 2 is opposite. sensor 1 is closest to manifold.

Jan 10, 2013 | 2003 Toyota Highlander

1 Answer

2002 Toyota Camry oxygen sensor Bank 1 Sensor 2 location


go to manifold follow it till you find the downstream sensor there you go

Jul 21, 2012 | Cars & Trucks

1 Answer

Where's the bank 1 sensor 1 located at my toyota sienna 2007, i know there are 3 sensors in bank 1 and 1 sensor in bank 2 if you can give me the image or view where they are located i really appreciate...


O2 sensors location is broken down like this. The bank refers to which side of the motor the sensor is on. Bank 1 is the same side of the engine as the number one cylinder. Bank 2 is the other side of the motor. Sensor refers to either before the cat or after the cat.

Bank 1 sensor 1 would be the O2 on the side of the motor that the number one cylinder is on and before the cat.

The number one cylinder is on the back side of the motor (the side closest to the firewall). The O2 sensor will be in the exhaust pipe near the exhaust manifold.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Apr 29, 2011 | 2002 Toyota Sienna

1 Answer

NEED TO KNOW THE LOCATION OF BANK 1 SENSOR 2 ON A 2001 TOYOTA AVALON


If single exhaust pipe, look for the bank 1 sensor 2 oxygen sensor to be either stuck into the side of the catalytic converter or just downstream of it.

If dual exhaust pipes, look for the bank 1 sensor 2 oxygen sensor to be just downstream of the catalytic converter for the bank of cylinders that contain cylinder 1.

Feb 26, 2011 | Toyota Avalon Cars & Trucks

2 Answers

Where is bank 1 sensor 2 oxygen sensor located?


The bank 1 sensor 2 sensors are always oxygen sensor located behind the cat converters, the A/F ratio sensors are always in front of the cat in the exhaust manifold, the part number for the sensor B1/S2 is 89465-09290 from Toyota. Thanks.Helpmech.


Nov 12, 2010 | 2002 Toyota Sienna

1 Answer

2002 Toyota Solara - code 1155 air/fuel sensor heater circuit bank 1 sensor 2 - where is it located?


Hello! Bank 1=Left bank...Bank 2=Right bank...Looking from the transmission side..towards the drive belt side...Left bank=left...right bank=right...Sensor #2 is located behind the cat...

Guru.....................Saailer

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Aug 17, 2010 | Toyota Camry Solara Cars & Trucks

2 Answers

Where is the oxygen sensor, bank 1 sensor 1, located on a 2000 Toyota Solara? What is the best one to purchase for replacement?


B1S1 means first (upstream) , closest sensor to cyl. head , usualy at exhaust manifold.Bank 1 is cyl. head with cyl.#1 if you have V6 engine.
Best choice for brand - Denso.

Apr 27, 2010 | 2000 Toyota Camry Solara

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