Question about Chevrolet Cavalier

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Check engine light is on and the code says low voltage to rear o2 sensor so i replaced it i heard there is a way you have to drive you install a new o2 sensor

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  • Chevrolet Master
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No just drive it normal, it can take quite awhile for the light to go off unless you have someone clear the code for you..

Posted on Aug 20, 2010

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Posted on Jan 02, 2017

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I have a 2010 Buick Lacrosse that had the P0420 code. Replaced the Bank One Cat and the code and the check engine light came on again with the same code.


Did they use an original equipment cat from the dealer or an aftermarket one? Aftermarket cats can cause more problems than they fix. There very few that I will personally install.

are they monitoring downstream O2 sensor data to see if the O2 sensor may be biased high? If the cat is doing its job the downstream O2 sensors will read a lower voltage. Tricking the vehicle into running rich or lean will cause this voltage to change ( unplugging a coil will cause the Downstream O2 to read high as the cat tries to burn off the extra fuel. Unplugging a fuel injector will cause the downstream O2 sensor to read low as extra air is being pushed thought the cats). Making sure the downstream O2 sensors are capable of switching should be part of the diagnostics.

Are you sure they replace the right cat? There are 5 different engine options for this car. If you let me know what engine you have I can let you know what bank is bank 1.

Feb 20, 2015 | 2010 Buick LaCrosse CXL

1 Answer

S10 2.2 liter auto. 163000 mile


the code P0137 is low voltage o2 sensor bank 1 sensor 2.. mean o2 sensor rear of catalyst converter has low voltage it should stay around .500mv mean converter cat.do is job.with a voltmeter test backprobe signal when engine running. by default key on engine stop around .500mv.

Aug 29, 2013 | 2000 Chevrolet S-10

3 Answers

Check engine code p0137


P0137 - Oxygen (o2) sensor circuit low voltage (Bank 1 sensor 2)
If you have more than one (1) sensor on Bank 1 then it will be the rear sensor. Change the o2 sensor. You may also want to check the following:
  • Repair exhaust leak near the rear sensor (if leak is found)
  • Check for restriction in catalyst and replace as necessary
  • Repair short, open, or high resistance on o2 signal circuit

  • Most likely you will just need to replace the sensor. Hope this helps you.

    Jul 05, 2013 | 2002 Honda Odyssey

    2 Answers

    Catalyst system efficiency below threshold


    is that the code you get from comp is PO420 eng light if so worst news either you have an exh leak between o2 sensor 1 and o2 sensor 2 or the front o2 sensor is lazy or the front catyletic converter is not working

    basicaly code is only triggerd when engine is hot and the front o2 sensor and the rear o2 sensor read the same voltage when conv is working the front o2 sensor will fluctuate rapidly from 0v to 1v and rear o2 sensor will remain steady at 0.5v

    try to explain best i can plz vote comment or reply if you need more help

    Jan 17, 2011 | Chevrolet Astro Cars & Trucks

    1 Answer

    Check engin light on. There are four error codes P0137,P0141,P0342, and P1792. How do I fix it. Will I pass inspection with these codes?


    P0137 Error code Faulty O2 sensor Exhaust leak near the rear sensor
    • Plugged catalyst
    • Short to voltage on O2 signal circuit
    • High resistance or open on O2 signal circuit
    Possible Solutions
    • Replace faulty sensor
    • Repair exhaust leak near the rear sensor
    • Check for restriction in catalyst and replace as necessary
    • Repair short, open, or high resistance on o2 signal circuit
    P0141 Error code means Downstr Heated Oxygen Sensor Heater circuit fault - Bank No. 1.

    - replacement is needed for this issue.

    P0342 Error code means Camshaft Position Sensor Circuit Low Input

    P1792 Error code means P1792 means the computer isnt properly programmed so if this code keeps comming back the pcm may need to be replaced


    Aug 13, 2010 | 2002 Daewoo Lanos

    1 Answer

    I have code p0137 coming up on my 2003 jeep grand cherokee laredo what does the code mean?


    P0137 - Oxygen O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2)

    Essentially the same as P0136, P0137 refers to the second oxygen sensor on Bank 1. P0137 means the O2 oxygen sensor's voltage remained low for longer than 2 minutes. This, is interpreted by the ECM as a low voltage condition and sets the MIL. Bank 1 Sensor 2 is located to the rear of the catalytic converter and should produce an output signal relative to oxygen storage capacity of the catalytic converter. This rear (sensor 2) sensor is less active than the signal produced by the front sensor. However, if the ECM senses the sensor is inactive, this code will set.

    Symptoms: There may be no visible symptoms to the driver, other than the MIL (Check Engine / Service Engine Soon) illumination.

    Causes: A code P0137 may mean that one or more of the following has happened:
    * Faulty o2 sensor Exhaust leak near the rear sensor
    * Plugged catalyst
    * Short to voltage on O2 signal circuit
    * High resistance or open on O2 signal circuit

    Possible Solutions:
    * Replace faulty sensor
    * Repair exhaust leak near the rear sensor
    * Check for restriction in catalyst and replace as necessary
    * Repair short, open, or high resistance on o2 signal circuit

    Hpe hti shelps (remember comment and rated this).

    Jul 26, 2010 | 2003 Jeep Grand Cherokee

    2 Answers

    Check engine light. code po141 codepo122


    po141, may be a bad o2 sensor, rear sensor after converter. the po 141 is low voltage to tps, try replacing the oyxgen sensor first and then reset the codes and drive if the po141 comes back then replace the tps,

    Apr 15, 2010 | 1998 Chevrolet S-10 Pickup

    1 Answer

    Po137/po157 codes no activity


    P0137 / P0157-Oxygen O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2) refers to the second oxygen sensor on Bank 1. P0137 means the O2 oxygen sensor's voltage remained low for longer than 2 minutes. This, is interpreted by the ECM as a low voltage condition and sets the MIL. Bank 1 Sensor 2 is located to the rear of the catalytic converter and should produce an output signal relative to oxygen storage capacity of the catalytic converter. This rear (sensor 2) sensor is less active than the signal produced by the front sensor. However, if the ECM senses the sensor is inactive, this code will set.

    A code P0137 may mean that one or more of the following has happened:

    Faulty o2 sensor Exhaust leak near the rear sensor
    Plugged catalyst
    Short to voltage on O2 signal circuit
    High resistance or open on O2 signal circuit

    Possible Solutions…
    Replace faulty sensor
    Repair exhaust leak near the rear sensor
    Check for restriction in catalyst and replace as necessary
    Repair short, open, or high resistance on o2 signal circuit

    Mar 08, 2010 | 2000 Chevrolet Camaro

    1 Answer

    I just get a 2000 lanos but the check engine ligth is ON when i put it the code reader says to me 2 codes : 1st code is P0137 and p1336 say a lot lf items but got to be only one of those , whath can be???...


    Essentially the same as P0136, P0137 refers to the second oxygen sensor on Bank 1. P0137 means the O2 oxygen sensor's voltage remained low for longer than 2 minutes. This, is interpreted by the ECM as a low voltage condition and sets the MIL. Bank 1 Sensor 2 is located to the rear of the catalytic converter and should produce an output signal relative to oxygen storage capacity of the catalytic converter. This rear (sensor 2) sensor is less active than the signal produced by the front sensor. However, if the ECM senses the sensor is inactive, this code will set.

    Symptoms There may be no visible symptoms to the driver, other than the MIL (Check Engine / Service Engine Soon) illumination.

    Causes
    A code P0137 may mean that one or more of the following has happened:
    • Faulty O2 sensor Exhaust leak near the rear sensor
    • Plugged catalyst
    • Short to voltage on O2 signal circuit
    • High resistance or open on O2 signal circuit

    • Possible Solutions
    • Replace faulty sensor
    • Repair exhaust leak near the rear sensor
    • Check for restriction in catalyst and replace as necessary
    • Repair short, open, or high resistance on o2 signal circuit
    The other code is your crankshaft position sensor. You need to replace both of the sensors and the check engine light will go off.

    Sep 28, 2009 | 1999 Daewoo Lanos

    1 Answer

    2002 Alero check Engine light Codes P0132, P0137


    Code P0132 is O2 sensor voltage high bank1 sensor 1, P0137 is O2 sensor voltage low bank 1 sensor 2, P1189 indicates a fuel control problem bank 1. It could be either the O2 sensors or a convertor. Could also be intake manifold gaskets. GM had a lot of problems with the lower intake gaskets leaking on the 3.1 and 3.4 engines that was linked to their Dexcool coolant. In fact they just lost a class action lawsuit about it. check with the dealer and see if the intake problem has been taken care of. Hope this helps.

    Jan 16, 2009 | 2001 Oldsmobile Alero

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