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H2o bank 2 sensor 1 location

Need the location of bank2 sensor location

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Bank and sensor location. Bank 1 refers to the back of cylinders that contain cylinder #1. Bank two refers to the other bank of cylinders that do not contain cylinder #1. Sensor 1 refers to the upstream O2 sensor or the O2 sensor before the catalytic convertor. Sensor 2 refers to the downstream O2 sensor or the sensor located after the Catalytic convertor. I hope that helps, let me know if you have any other questions, good luck.

Posted on Mar 25, 2014


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Posted on Jan 02, 2017

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SOURCE: I had 2 codes:p0155 and p0135= 02 heater circuit

you say you replced sensors but some times that code could be also be the o2 sensors you should have 2 maybe 4 did you check them

Posted on Apr 15, 2010

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SOURCE: Bank 1 Sensor 1 Location

Tightened the gas cap. Emisions testing left it slightly loose setting off the sensor warnings. Even if it doesn't "look" like it is ose take it off and put it back on tight. If the warnings are still flashing then it prob is the sensor. Caddy's are very touchy about their gas caps!

Posted on Jun 10, 2008

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SOURCE: location of bank 1 sensor 2

B1S2 is located in the exhaust pipe after the Catalytic converter...


Hope help with this (remember comment and rated this).

Posted on Apr 14, 2010

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SOURCE: Cadillac Catera (1998) Replaced Bank 1 Sensor 1

Are you reset the stored codes? Try it.

Posted on Jul 23, 2010

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SOURCE: need to find the location of bank 2 sensor 2 o2


Posted on Oct 13, 2010

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Dec 05, 2010 | Toyota RAV4 Cars & Trucks

1 Answer


A code P0155 may mean that one or more of the following has happened:
* O2 Heater element resistance is high
* Internal short or open in the heater element
* O2 heater circuit wiring high resistance
* open or short to ground in the wiring harness

Possible Solutions:
* Repair short or open or high resistance in wiring harness or harness connectors
* Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)

Oxygen sensors are always numbered like this:
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.

Hope helps (remember to rate this).

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Oxygen sensor need to know where bank2 sensor one is located

Bank 1 is the same side as cylinder #1 and bank 2 is the same side as cylinder #2. Good luck and hope this helps.

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