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2006 hundai elantra P2270 code. If this is an O2 sensor, which one?

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Possible O2 sensors:

P2270 O2 Sensor Signal Stuck Lean Bank 1 Sensor 2
P2271 O2 Sensor Signal Stuck Rich Bank 1 Sensor 2
P2272 O2 Sensor Signal Stuck Lean Bank 2 Sensor 2
P2273 O2 Sensor Signal Stuck Rich Bank 2 Sensor 2
P2274 O2 Sensor Signal Stuck Lean Bank 1 Sensor 3
P2275 O2 Sensor Signal Stuck Rich Bank 1 Sensor 3
P2276 O2 Sensor Signal Stuck Lean Bank 2 Sensor 3
P2277 O2 Sensor Signal Stuck Rich Bank 2 Sensor 3
P2278 O2 Sensor Signals Swapped Bank 1 Sensor 3 / Bank 2 Sensor 3
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This is Bank 1 (closer to the dash panel) Sensor 2 (located after the catalytic converter).

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Note: A malfunctioning front oxygen sensor may cause fuel trim codes to set.

  1. Several Diagnostic Trouble Codes use specific terminology to refer to sensor location. The illustration and key below explain the following terms:
  2. Engine BANK Bank 1 is closer to the dash panel, (also referred to as RH or right hand). Bank 2 is closer to the radiator, (also referred to as LH or left hand).
  3. UP Refers to Sensor 1 or "front sensor". It is located closer to the exhaust manifold and before the catalytic converter.
  4. DOWN Refers to Sensor 2 or "rear sensor." It is located after the catalytic converter.
  5. The following examples show how to interpret oxygen sensor terminology:
  6. B1/S1 = Bank 1/Sensor 1 = Dash panel side, BEFORE the catalyst or "upstream"
  7. B2/S2 = Bank 2/Sensor 2 = Radiator side, AFTER the catalyst or "downstream"

Posted on Aug 06, 2010

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Codes P2270& P2272 after oil change check engine light on drove under 100 miles both O2 sensors bad .Could shop have caused this somehow??? Maybe banging them or something ?


make sure they are plugged in tight Definition of Diagnostic Trouble Code P2270 Category: Powertrain Definition: O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2Note: This definition of P2270 is applied to all manufacturers

P2270 - O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2 Comments ' Add Yours
Possible causes
- Faulty Rear Heated Oxygen Sensor Bank 1
- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Exhaust gas leaks Help with this
When is the code detected?
The Powertrain Control Module (PCM) detected the HO2S12 sensor has reported a lean condition for an extended period during an intrusive test
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P2270 Description
The Powertrain Control Module (PCM) supplies a voltage of about 450 mV between the HO2S high and low signal circuits. The oxygen sensor varies the voltage over a range from about 1,000 mV when the exhaust is rich, down through about 10 mV when the exhaust is lean.
The PCM monitors and stores the heated oxygen sensor (HO2S) voltage information. The PCMevaluates the HO2S voltage samples in order to determine the amount of time the HO2S voltage was out of range. The PCM compares the stored HO2S voltage samples taken within each sample period and determines if majority of the samples are out of the operating range.

Definition of Diagnostic Trouble Code P2272 Category: Powertrain Definition: O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 2Note: This definition of P2272 is applied to all manufacturers

P2272 - O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 2
' Add Comment
Possible causes
- Faulty Rear Heated Oxygen Sensor Bank 2
- Rear Heated Oxygen Sensor Bank 2 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection
- Exhaust gas leaks
What does this mean?
When is the code detected?
The Powertrain Control Module (PCM) detected the HO2S22 sensor has reported a lean condition for an extended period during an intrusive test
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P2272 Description
The Powertrain Control Module (PCM) supplies a voltage of about 450 mV between the HO2S high and low signal circuits. The oxygen sensor varies the voltage over a range from about 1,000 mV when the exhaust is rich, down through about 10 mV when the exhaust is lean.
The PCM monitors and stores the heated oxygen sensor (HO2S) voltage information. The PCMevaluates the HO2S voltage samples in order to determine the amount of time the HO2S voltage was out of range. The PCM compares the stored HO2S voltage samples taken within each sample period and determines if majority of the samples are out of the operating range.
P2272 Information for specific makes
P2272 BMW
P2272 DODGE
P2272 FORD

Jul 30, 2015 | Cars & Trucks

1 Answer

Check engine light is on autozone gave P2270 after checking it? What does this mean?


This P2270 trouble code refers to the post-catalytic converter O2 (oxygen) sensor on bank #1, sensor #2.

Check this site:
P2270 O2 Sensor Signal Stuck Lean B1S2

P2270 O2 Sensor Signal Stuck Lean B1S2

Feb 28, 2015 | Cars & Trucks

1 Answer

What to the codes P2270 mean on my Cadillac


It's the O2 sensor attached to your exhaust pipe behind the catalytic convertor that has detected your exhaust is too lean. It could mean any of a variety of issues from simply the sensor is faulty, to the sensor being loose fitting, to a leak in the exhaust before the sensor, to a bad fuel injector ---- essentially, anything that can reduce the amount of fuel emission that "should" be present.

Nov 02, 2013 | 2008 Cadillac Escalade

1 Answer

Cadillac Escalade 2008 what to the codes P2270


Bank 1 Sensor 2 signal is indicating a lean condition, replace the O2 sensor. Right side (passenger) after the Cat.

Nov 02, 2013 | 2008 Cadillac Escalade

1 Answer

2005 Mazda Tribute P0172 & P2270


Hi Paul, Have you had a fault code relating to the knock sensor? That sensor controls ignition timing which can have a relationship to the fault codes you report? Regards John

Apr 06, 2013 | 2005 Mazda Tribute

1 Answer

2006 Elantra CEL STILL on after O2 bank 1 sensor 1 and flex pipe replaced


All that has to be done is use the codes you have had
for months ,to diagnose the systems with faults & make
whatever repairs are necessary. No big deal

Just have to actually do something,not you, a repair shop

Mar 12, 2013 | Hyundai Elantra Cars & Trucks

1 Answer

2002 Subaru Forester P0136 see P2270 P2271 intermittent idling fluctuation and acceleration hesitation


Is the wiring good going to the O2 sensors? Maybe just look the car over and see if you have any bad grounds. They can do weird things. Could be a bad ICU.

Jan 22, 2012 | 2002 Subaru Forester

2 Answers

I got 2 codes off the check engine OEM today... P0171 P2243 I'm thinking O2 sensor, but AutoZone didn't have Hyundai listed. Where can I find Bank 1, Sensor 1? How many O2 sensors does the 06 elantra...


It has two sensors. Bank 1 Sensor 1 is inside the engine bay under the metal heat shield on the front of the engine. Check out NTK sensors online. The one you need will be a 4 wire sensor. The NTK part number is 24588.

Dec 04, 2010 | 2006 Hyundai Elantra

1 Answer

2005 Ford Ranger exhibiting code P2270


According to my book, it looks like a bad O2 sensor, the sensor behind the catalytic converter on the passenger side exhaust.

Bank 1, Sensor 2.

You can pick one up at the parts store for around $75.

Dec 17, 2009 | 2005 Ford Ranger

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