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Oxygen sensor bank 1 sensor 1 location in a 2005 chevy equinox

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6ya6ya
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Posted on Jan 02, 2017

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daves944
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SOURCE: Where is Bank 1 Sensor 1 on an 2003 Oldsmobile Sillohuette?

"Bank one" is the bank of cylinders that starts with the #1 cylinder. In this case this will be the bank of three cylinders that is closest to the firewall. Sensor #1 refers to the O2 sensor that is between the engine and the catalytic converter. So the Bank 1, sensor 1, will be the O2 sensor that is mounted in the rear exhaust manifold or tubing just before the cat.

Posted on May 16, 2009

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wiringlunati
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SOURCE: On my 97 Olds Aurora, I'm having trouble passing

The bank 1 sensor should be the one before the CAT on the side of the engine that includes cylinder #1. If you're not sure which bank that is, look across the heads from the side of the engine (front of the car) The bank with #1 on it will have the head a little (1"-2") more towards the front of the engine. The bank that has the head set back a bit will be #2. When there are sensors after the CAT, they're not oxygen sensors, they're CAT efficiency sensors.

Posted on Nov 25, 2009

Testimonial: "Thank you so much, I found out that my number 2 head is in front. Since the cylinders are labeled 2, 4, 6, and 8 are all on the front. Thanks."

toneman2121
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SOURCE: 2001 Olds Alero oxygen sensor bank 1 P0135

p0135 indicates bank 1 sensor 1 which is before the cat.

Posted on May 22, 2010

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SOURCE: getting po104 reading on yhe

IT IS THE FIRST ONE CLOSEST TO FRONT OF ENGINE. THANKS MOTOR62500

Posted on Dec 19, 2010

archaeology
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SOURCE: where is the oxygen sensor

From the 2002 Oldsmobile Alero manual:
A device found in the exhaust manifold, which generates a small voltage dependent on the amount of oxygen present in the exhaust stream, used as a signal to the engine-control computer to determine the amount of fuel necessary to maintain a proper air/fuel ratio.
What this means to me is search the exhaust manifold for it - its screwed into it.
Unscrew it with a specialty oxygen sensor socket (a slotted 7/8-in hex socket) - available for
$10 at any parts store. This is likely the HO2S (heated oxygen sensor) Bank 1 Sensor 1, since
it is before the catalytic converter, the second oxygen sensor (Bank 1, Sensor 2) should
be the one located after the catalytic converter.

codes:
P0130 - HO2S-11 (Bank 1 Sensor 1) Circuit Closed Loop Performance
P0131 - HO2S-11 (Bank 1 Sensor 1) Circuit Low Input
P0132 - HO2S-11 (Bank 1 Sensor 1) Circuit High Input
P0133 - HO2S-11 (Bank 1 Sensor 1) Insufficient Activity
P0135 - HO2S-11 (Bank 1 Sensor 1) Heater Circuit Malfunction

Note the P0131 can be also be caused by a bad MAP (Manifold Absolute Pressure) sensor,
so yank the MAP sensor and check the computer for a lean fuel condition (P0131=low input).

Posted on Mar 24, 2011

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1 Answer

How many O2 sensors does a 2005 Chevy Cobalt base model 4 cylinder have


Oxygen sensors are identified by bank and sensor position. Sensor 1 is always pre catalytic converter, sensor two is always post catalytic converter. If an engine is a 4 or 6 cylinder engine the whole engine is considered bank 1, if an engine is a V6, V8, V10....., the engine bank containing cylinder number 1 (first cylinder in the firing order) is considered Bank 1, the other bank is considered Bank 2. Interpretation Oxygen sensor designation B2S1 refers to Bank 2 Sensor 1, it will be the sensor on the engine side of the catalytic converter in bank two. Check this link to determine the cylinder that contains cylinder number 1. http://www.wellsve.com/custom_searches/ds_firing.php Wells Search Parts Catalog

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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

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P1133 CHEVROLET - HO2S Insufficient Switching Bank 1 Sensor 1xicon.jpghttp://engine-codes.com/p1133_chevrolet.htmlForum CodePossible causes- Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 shorted to Engine Control Module (ECM) ground
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BANK 1 UP STREAM OXYGEN SENSOR LOCATION IS LOCATED ON THE REAR EXHAUST MANIFOLD.

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Bank 1 sensor 2 location on a 1996 chevy suburban


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Fig. Fig. 3: Oxygen sensor-4.3L engines


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Fig. Fig. 4: Oxygen sensor-5.0L and 5.7L engines





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Fig. Fig. 5: Oxygen sensor-7.4L engines




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).



Dec 12, 2010 | Chevrolet Suburban Cars & Trucks

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2005 Chevrolet Equinox runs ruff. Showing a cdoe 171 running too lean bank 1 Possible causes?


Vacuum leak on that bank due to damaged/loose connection of a vacuum hose to sensors or intake gasket on that side being the worst.

Aug 12, 2010 | 2005 Chevrolet Equinox

1 Answer

I would like to know the Location of the P0036 on a 2005 Chevy Impala LS. Motor: 3800. Also how to replace it.


P0036....HO2S Heater Control Circuit (Bank 1 Sensor 2)
location is Bank 1 is on the side of number 1 cylinder. Sensor 1 is on the exhaust manifold. i would change the oxygen sensor on the exhaust manifold i believe thats the one closes to the front of the car with the hood up. good luck

Apr 16, 2010 | 2005 Chevrolet Impala

2 Answers

2005 gallant with O2 sensor engine light is one...how do I fix it?


have the engine light code scanned, and it'll tell you if it's bank 1 sensor 1, bank 1 sensor 2, bank 2 sensor 1, bank 2 sensor 4.

Bank 1 is on the same side as Cylinder 1
Bank 2 is on the opposite side of Cylinder 1

Sensor 1 is located before the catalytic converter.
Sensor 2 is located after the catalytic converter

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My 2005 equinox bank1 sensor 1 o2 sensor is bad, where is this located on my engine?


How do you know the bank 1 sensor 1o2 sensor is bad sometimes other components will give an o2 sensor code what was the fault code? Bank one means closest to the number one cylinder sensor one means before the cat, What size motor, litre size

Jul 15, 2009 | 2005 Chevrolet Equinox

1 Answer

Oxygen sensor


They are all located on you exhaust system. Start from you exhaust manifold and follow the pipes down to the tail pipes . You will see the sensors (4) they are screwed into exhaust pipes and they have wire connections on them (Kinda Looks Like a spark Plug) they wires are unusually colored in white black and grey. Good Luck contact if you need more information

Dec 28, 2008 | 2005 Chevrolet Equinox

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