Question about 1996 Chevrolet Cavalier

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Failed e-check oxygen sensor? - 1996 Chevrolet Cavalier

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There are many reasons why a vehicle fails an emissons test. The only way to narrow it down is to get the codes scanned. But a common reason is a faulty EVAP.

Posted on Jul 10, 2010

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What is p0141b and how to fix it?


Technical Description O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2) What does that mean? This code means that the heated circuit in the oxygen sensor on bank 1 decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0141. See also: P0135 (Bank 1, Sensor 1). Symptoms You will likely notice poor fuel economy the illumination of the Check Engine Light. Causes A code P0141 may mean that one or more of the following has happened: open or short to ground in the wiring harness O2 heater circuit wiring high resistance O2 heater element resistance is high Internal short or open in the heater element Note: Typically a failed catalytic converter does not cause this code. You're more likely to see a P0420 code for a failed converter. Possible Solutions Replace oxygen sensor (cannot repair open or short that occurs internally to sensor) Repair short or open or high resistance in wiring harness or harness connectors



Try wiggling the wire to the Oxygen sensor. Probably just corroded or loose! Worst case, $25 for a new sensor.

Jul 22, 2014 | 2004 Pontiac Grand Am

1 Answer

1998Pontiac Bonneville check engine light is on Code p0171 how can I fix this


  • Bank 1 Oxygen sensor fault: Possible causes:
  • The MAF (Mass Air Flow) Sensor is dirty or faulty
    Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
  • There could be a vacuum leak downstream of the MAF sensor
  • Possible cracked vacuum or PCV line/connection
  • Faulty or stuck open PCV valve
  • Failed or faulty oxygen sensor (bank 1, sensor 1)
  • Sticking/plugged or failed fuel injector
  • Low fuel pressure (possible plugged/dirty fuel filter!)
  • Exhaust leak between engine and first oxygen sensor
  • Solutions:


  • Solutions:


    S

    Jul 20, 2014 | Cars & Trucks

    2 Answers

    What does the codes p0442,p0136 &p0141 mean on my 2001 ford taurus it failed inspection for these codes


    P0442 FORD - Evaporative Emission System Leak Detected Small Leak

    Possible causes- Missing or loose fuel cap
    - Incorrect fuel filler cap used
    - Fuel filler cap remains open or fails to close
    - Foreign matter caught in fuel filler cap
    - EVAP canister or fuel tank leaks
    - EVAP system hose leaking
    - Fuel tank leaking
    P0136 - O2 Sensor Circuit Malfunction Bank 1 Sensor 2
    Possible causes- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
    - Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
    - Faulty Rear Heated Oxygen Sensor Bank 1
    - Inappropriate fuel pressure
    - Faulty fuel injectors
    - Intake air leaks may be faulty
    - Exhaust gas leaks

    P0141 FORD - O2 Heater Circuit Bank 1 Sensor 2

    Possible causes- Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2
    - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse
    - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground
    - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection
    - Faulty Engine Control Module (ECM)

    Sep 27, 2012 | 2001 Ford Taurus

    1 Answer

    01 vw Jetta trubo 2.0 code p1113



    Trouble Code: P1113

    O2 Control (Bank 1 Sensor 1) Internal Resistance Too High
    Possible Causes:


    Oxygen sensor (before catalytic converter) is faulty. Oxygen sensor (behind catalytic converter) is faulty. Oxygen sensor heater (before catalytic converter) is faulty. Oxygen sensor heater (behind catalytic converter) is faulty. Circuit wiring has a short to power or ground. Engine Component Power Supply Relay is faulty . E-box fuses for oxygen sensor are faulty . Leaks present in the exhaust manifold or exhaust pipes. HO2S signal wire and ground wire crossed in connector . HO2S element is fuel contaminated or has failed. ECM has failed .Here is what is listed.

    Sep 05, 2012 | Volkswagen Jetta Cars & Trucks

    1 Answer

    My po141 02 heater circvit 2-sensor tx what is wrong with it


    Hi there:
    This code means that the heated circuit in the oxygen sensor on bank 1 decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0141. See also: P0135 (Bank 1, Sensor 1).
    SymptomsYou will likely notice poor fuel economy the illumination of the Check Engine Light.

    A code P0141 may mean that one or more of the following has happened:open or short to ground in the wiring harnessO2 heater circuit wiring high resistanceO2 heater element resistance is highInternal short or open in the heater elementNote: Typically a failed catalytic converter does not cause this code. You're more likely to see a P0420 code for a failed converter.

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

    Hope helps.

    Mar 12, 2012 | 1999 Chevrolet K1500

    1 Answer

    How can you tell if oxygen sensor is bad


    Hello there and welcome to fixya
    Remove the oxygen sensor connector cover and check the oxygen sensor's operational voltage. Consult your vehicle's manual to find the wiring schematic. Back probe the sensor's connector with the meter leads. Start engine again and monitor voltage readings. Voltage should switch between high and low, from approximately 0.1 to 0.9 vdc. Replace sensor if it fails this test.
    3

    Unplug the sensor connector and test the sensor's heating circuit. Using your vehicle's wiring schematic, check for 12 vdc and also for a good ground. If voltage or a ground is not present, repair circuit between connector and battery.
    4

    Measure internal resistance of the sensor's heater circuit. Check that the heater resistance is a low reading. Replace sensor if the heater resistance is infinity or extremely high.
    5

    Unplugging the sensor's connector while testing the oxygen sensor will often set fault codes and illuminate the "Check Engine" light. After all checks and repairs have been made, clear the fault codes by following the procedure in your vehicle's

    Read more: How to Test Oxygen Sensors ' eHow.com http://www.ehow.com/how_4780847_test-oxygen-sensors.html#ixzz1hPBA4wKH

    Dec 23, 2011 | Cars & Trucks

    1 Answer

    What is diagnostic procedures for DTC p0135 & p0141


    Oxygen Sensor problems... P0135 (Bank 1, Sensor 1) and P0141 (Bank 1, Sensor 2)

    P0135 - Oxygen O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
    This code refers to the front oxygen sensor on Bank 1. The heated circuit in the oxygen sensor decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it.

    The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0135.

    Symptoms: You will likely notice poor fuel economy the illumination of the MIL.

    Causes: A code P0135 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)



    P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
    This code means that the heated circuit in the oxygen sensor on bank 1 decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0141.

    Symptoms: You will likely notice poor fuel economy the illumination of the Check Engine Light.

    Causes: A code P0141 may mean that one or more of the following has happened:
    open or short to ground in the wiring harness
    O2 heater circuit wiring high resistance
    O2 heater element resistance is high
    Internal short or open in the heater element

    Note: Typically a failed catalytic converter does not cause this code. You're more likely to see a P0420 code for a failed converter.

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


    Hope this helps (remember to rate this answer)..

    May 11, 2011 | 2000 Nissan Maxima

    2 Answers

    I am being told I have to replace 3 catalytic converters and computer on my 2001 Toyota Sienna van to solve a check engine light on. I would think the codes would better pinppoint the issue. the quote on...


    First, what are the codes?

    Secondly, there are no codes that specifically indicate a failed catalytic converter issue.

    A code relating to an oxygen sensor may not indicate a failed catalytic converter(s). It may be a defective oxygen sensor.

    There are 3 catalytic converters on this model. One is connected directly to the right exhaust manifold, one is connected below the left exhaust manifold and one is connected under the vehicle before the two mufflers.

    The last oxygen sensor (beyond the catalytic converter under the vehicle) is the one that compares the oxygen level in the combustion by-products for legal pollution requirements. It is screwed into the exhaust pipe and its wiring travels up into the vehicle through the floor and making a connection under the passenger front seat then to the computer for analysis.

    A code relating to an oxygen sensor may indicate a failed oxygen sensor heater circuit in the oxygen sensor. This does not mean that the oxygen sensor is defective, only the oxygen sensor heater circuit.

    If a catalytic converter is clogged, you should experience performance problems.

    In addition to the check engine light being on, are you experiencing any performance problems?

    Oct 21, 2010 | 2001 Toyota Sienna

    1 Answer

    Oxygen sensor codes I have 2 codes PO133 and PO141 says possible defective sensor or faulty HO2S12 or poor connections


    Well it could be the wiring too the sensor, a software issue that requires flashing the pcm or the sensor you purchased is not working too the same standards that the old one was. Did you use a one type fit alls 02 sensor that uses the old connector and you have to splice the wires? Read this info...


    P0133 - Oxygen Sensor Circuit Slow Response (Bank1, Sensor1)

    What does that mean?
    This involves the front oxygen sensor on Bank 1. This code indicates the engine air fuel ratio is not being adjusted by the oxygen sensor signal or the ECM as expected to do so, or not adjusted as often as expected to do so once the engine is warmed or under normal engine use.

    Symptoms:
    You will likely not notice any drivability problems, although there may be symptoms.

    Causes:
    A code P0133 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

    Possible Solutions:
    The simplest thing to do is to reset the code and see if it comes back.

    If the code comes back, the problem is more than likely the front Bank 1 oxygen sensor. You will likely wind up replacing it but you should also consider these possible solutions:
    * 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



    P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)

    What does that mean?
    This code means that the heated circuit in the oxygen sensor on bank 1 decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0141. See also: P0135 (Bank 1, Sensor 1).

    Symptoms:
    You will likely notice poor fuel economy the illumination of the Check Engine Light.

    Causes:
    A code P0141 may mean that one or more of the following has happened:
    * open or short to ground in the wiring harness
    * O2 heater circuit wiring high resistance
    * O2 heater element resistance is high
    * Internal short or open in the heater element

    Note: Typically a failed catalytic converter does not cause this code. You're more likely to see a P0420 code for a failed converter.

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


    Hope helps (remember rated and comment this).

    Jul 01, 2010 | 2000 Pontiac Sunfire

    2 Answers

    How many oxygen sensors in a 2001 chrysler sebring 3.0


    17c3292.jpg

    Fig. Heated Oxygen (HO2S) location (sensor 1)-2.4L engine

    db6f426.jpg

    Fig. Heated Oxygen (HO2S) location (sensor 2)-2.4L engine

    99e413c.jpg

    Fig. Heated Oxygen (HO2S) location (bank 1, sensor 2) (bank 2, sensor 2)-2.7L engine

    e2a250f.jpg

    Fig. Heated Oxygen (HO2S) location (bank 2, sensor 1)-2.7L engine

    I hope help you with this (rated this help). Good luck.

    Sep 09, 2009 | 2001 Chrysler Sebring

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