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P0139 codes - Mazda Cars & Trucks

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SOURCE: code number P0139 BK1 code number p0139 BK1

This code indicates the oxygen sensor on bank one is not operating properly. Check the wiring to this sensor for breaks or grounding before replacing the sensor.

Posted on Nov 05, 2009

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SOURCE: 2004 jeep liberty P0139 code

PO139:O2 Sensor ckt Slow Response(Bank 1,sensor 2).This would be the odd side cylinders(1,3,5) and the 2nd oxygen sensor form the cylinder head.The sensor may be contaminated,or the heating element(on a 3 or 4 wire sensor) may not be working well.a good auto parts store should be able to show you a picture of where it is(the store will probably give you a printout if you buy the part form them!)

Posted on Sep 25, 2012

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PO-139 I had that sensor change 3 weeks ago and the check engine light came on again this morning.Thanks


Probably replaced a good sensor. This codes could be from a bad sensor, a vacuum leak, or an exhaust leak before the sensor.

Dec 01, 2015 | 2006 Hyundai Tucson

1 Answer

2004 jeep liberty P0139 code


PO139:O2 Sensor ckt Slow Response(Bank 1,sensor 2).This would be the odd side cylinders(1,3,5) and the 2nd oxygen sensor form the cylinder head.The sensor may be contaminated,or the heating element(on a 3 or 4 wire sensor) may not be working well.a good auto parts store should be able to show you a picture of where it is(the store will probably give you a printout if you buy the part form them!)

Sep 24, 2012 | 2004 Jeep Liberty

2 Answers

P0139 and P0139pd are these codes for the O2sensor after the catalytic converter


bank 1 sensor 2. yes it is after the catalytic converter

Feb 17, 2011 | 2005 Kia Rio

1 Answer

Can anyone tell me what the following codes are on my 1997 Cadillac Deville?? P0139, P0603, P1139, and P1599.....


Firstly, they are al P type codes, which refers to PCM.

P0139 - HO2S (Heated Oxygen Sensor) Slow Response Bank 1 Sensor 2. This is is the sensor in front of the catalytic converter.

P0603 - Internal Control Module Keep Alive Memory error. This error normally comes up when the battery is disconnected.

P1139 - HO2S (Heated Oxygen Sensor) Insufficent Switching Bank 1 Sensor 2. (see above)

P1599 - Engine Stall or Near Stall Detected.

I hope this helps.....I would attempt erasing the codes first and see if they come back, and then going from there.

Oct 13, 2010 | 1997 Cadillac DeVille

1 Answer

What is nissan quest code p0138/p0139


P0138 - Oxygen Sensor Circuit High Voltage (Bank1, Sensor2)

P0139 - Oxygen Sensor Circuit Slow Response (Bank1, Sensor2)

The Heated Oxygen Sensor (1 or 2) located rear of catalytic converter produces an output signal relative to oxygen storage capacity of catalytic converter. Ho2S 2 signal is less active than signal produced by front oxygen sensor. This code sets when HO2 Sensor voltage is greater than 999 mV for more than 2 minutes (time depends on model. Could be as high as 4 minutes)

Symptoms: There may be no noticeable symptoms except for MIL illumination. Possible high fuel pressure can over rich the system.

Causes: A code P0138 may mean that one or more of the following has happened:
* Faulty O2 sensor
* Short to battery voltage in O2 sensor signal circuit
* High fuel pressure (not as likely)

Here are some potential solutions:
* Replace O2 sensor
* Repair short to battery voltage in o2 sensor signal circuit

Hope helps (remember to rate this answer).

Oct 11, 2010 | 2002 Nissan Quest

1 Answer

Error code for yaris p0139 01/01 which sensor is it


p0139 indicates bank 1 sensor 2. the sensor is aft of the catylitic converter

Jun 12, 2010 | 2007 Toyota Yaris

1 Answer

My car indicates check engine sigh with following two codes 1: p0139 2: p0140


Hi Garcha,

Both codes relate to O2 Sensor # 2

Code P0139: O2 Sensor Circuit Slow Response - Bank 1, Sensor 2
Code P0140: O2 Sensor Circuit No Activity Detected - Bank 1, Sensor 2

A faulty O2 sensor will mean incorrect signals will be sent to the EFI computer, causing erratic engine running.


Cheers,


"If this has helped you in any way, please rate this solution" :-)



Jan 27, 2010 | Hyundai Motor 2002 Elantra

1 Answer

Code number P0139 BK1 code number p0139 BK1


This code indicates the oxygen sensor on bank one is not operating properly. Check the wiring to this sensor for breaks or grounding before replacing the sensor.

Nov 03, 2009 | 2000 Nissan Maxima

2 Answers

Scanning codes


Oxygen sensor response not as expected.Oxygen sensor response slower than minimum required switching frequency,code P0139 may mean that one or more of the following has happened:
  • The oxygen sensor is faulty
  • The wiring to the sensor is broken / frayed
  • There is an exhaust leak
    • Check and fix any exhaust leaks
    • Check for wiring problems (shorted, frayed wires)
    • Check the frequency and amplitude of the oxygen sensor (advanced)
    • Check for a deteriorating / contaminated oxygen sensor, replace if necessary
    • Check for inlet air leaks
    • Check the MAF sensor for proper operation ,I hope this helps

Oct 18, 2009 | 2008 Jeep Compass

2 Answers

P0139 code for a 2003 hyundai elantra. What is this code?


Hi the code P0139 is Bank 1 sensor 2 lambda sensor fault ,possible wiring or sensor fault even if you replace the sensor you need to have the MIL lamp turned off by a Diagnostic machine,it is possible you have another fault such as poor Catalytic converter efficency giving the same fault code ,Would recomend you get the car checked and read the "live" data as the car see`s it to make an accurate diagnosis and cure

Jul 10, 2009 | Hyundai Motor 2003 Elantra

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