Question about 1996 GMC Jimmy

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How do u test o2 sensors

Need to know test for o2 sensors

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  • rayebuck Oct 30, 2008

    needhelp no power while driving idles fine

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I just changed them sense they were inexpensive

Posted on Nov 05, 2008

5 Suggested Answers

chiquititas
  • 1010 Answers

SOURCE: Chrysler LHS o2 sensor testing

If u know u have a bad o2. I guess u must have used a scanner or equivalent. There are 4 o2s on LHS. The way u can tell the difference is by the # sequence that the failure code is giving u. For example the o2s on the right side are even # on the left odd #. Pre cat is 1 after cat is 2. So if u have bad 2/2 Than u know it's right rear or a bad 1/1 is left front ect ect. First make sure u have the right code. With out a scanner. it can be done with a volt meter or a vantage, but it's a heck of a lot easier pulling the codes.

Posted on May 15, 2008

ewashmidas
  • 362 Answers

SOURCE: o2 sensor 1996 volvo fail emission test

If you have trouble codes stored in your cars computer for O2 sensors a fuse will not fix it. One or all of the O2's may need to be replaced. There are test that can be done to confirm which one.

Posted on Jan 28, 2009

emissionwiz
  • 70365 Answers

SOURCE: need to replace knock sensor/ O2 sensor 04 kia rio

IT IS IN THE SIDE OF THE ENGINE BLOCK, SCREWED INTO THE WATER JACKET OF THE BLOCK

Posted on Sep 18, 2009

SOURCE: My 2002 ZX2 failed an emission test. An Autozone

You have them tested, by a repair shop, that has the knowledge
and proper test equipment.
You never replace any part,based on a code alone
The code you got, will indicate which sensor,but
not that is bad,got to test

Posted on Dec 02, 2010

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Got Honda accord 2000 code po135 replaced 02 sensor and stil show same code



How to Diagnose a P0135 -Heater
Performance Bank 1 Sensor 1 (GM 3.5L)
January 31, 2012 Updated: October 29, 2014 Written by: Abraham Torres-Arredondo Article Id: 371

image_1.gifIf your check engine light is on and you have a diagnostic trouble code P0135 stored in the PCM's memory... then you've come to the right place to test and troubleshoot the upstream oxygen sensor.
A P0135 DTC says: HO2S Heater Performance Bank 1 Sensor 1... and this means that the PCM (Powertrain Control Module = Fuel Injection Computer) has detected a problem with the front oxygen sensor's heater element or a problem in the heater's circuit (wires).
In this tutorial, I'll show you how to check the oxygen (O2) sensor's heater element and the two circuits that feed it with power (10 to 12 Volts) and ground with a multimeter.
In case you're wondering, where the oxygen (O2) sensor that the code P0135 is accusing of being BAD is... this bad boy is located on the exhaust manifold and before the catalytic converter.
To help you navigate this article, here are its main points:
  1. Symptoms of a BAD Oxygen Sensor Heater Element.
  2. What Tools Do I Need to Test Code P0135?
  3. What Does the Heater Inside the Oxygen Sensor Do?
  4. Circuit Descriptions of the Downstream Oxygen Sensor.
  5. Start Here.
  6. TEST 1: Oxygen Sensor Bank 1 Sensor 1 Test.
  7. TEST 2: Checking 12 Volts to O2 Heater.
  8. TEST 3: Checking the O2 Heater's Ground Circuit.
  9. TEST 4: Ohming the O2 Heater Element.
  10. P0135 O2 Sensor Heater Test Summary.
Buying a Digital Multimeter for Automotive Diagnostic Testing (found at: easyautodiagnostics.com).
  • Scan Tool.
    1. Don't have one?... check out my recommendation: Abe's Scan Tool Recommendation.
  • Wire Piercing Probe.
    1. Although this tool is not an absolute must, if you do buy one, you'll realize just how easy it makes testing the voltages inside the wires.
    2. If you need to see what this tool looks like, you can see it here:Wire Piercing Probe.
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      • 2004, 2005
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      • 2004, 2005
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    How To Test for a Blown Head Gasket (GM 3.5L, 4.2L)
    How to Test the MAF Sensor and Codes: P0100, P0101, P0102, P0103
    How To Test for a Blown Head Gasket (GM 3.5L -FWD)
    All Articles: 3.5L "A day without sunshine is like, you know, night"
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    MORE TUTORIALS:
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    Feb 03, 2015 | 2000 Honda Accord

    Tip

    How to Test the O2 Sensor of Bentley Arnage car?


    O2 sensor needs to be replaced when you get low gas mileage in car.
    So before replacing the sensor it needs to be tested.
    The procedure to test O2 sensor is as follows: ---
    1) First drive the vehicle for 15 minutes in normal temperature.
    2) Then Stop the vehicle in park mode and turn the engine off.
    3) You will see primary O2 sensor on the exhaust manifold, the manifold will be very hot to touch so take care.
    4) The function of O2 sensor in the car is to measure the amount of oxygen in car and then send that information to engine to adjust fuel pressure.
    5) Now to measure the O2 sensor reading. Carefully disconnect the wire at the O2 connector, and hook the positive lead of volt meter to the O2 sensor side of the connector and connect the positive lead of volt meter to harness side of the connector.
    6) In the O2 sensor you will notice two black wires that are not used for testing.
    7) Now before beginning the important part of the testing procedure, check out properly that wires of O2 sensor and wires of volt meter are not getting touch to any other metal part or the manifold.
    8) After checked and confirmed. Now start the car and see the voltage in engine idle position.
    9) The reading will go high or go low but the average reading that it should show is 500 mV.
    10) Now let the engine run and with engine running disconnect the fuel pressure regulator vacuum hose, and plug the hose with your finger.
    11) The 500 mV reading will go to 700-800 mV.now remove the finger the reading will fall low to 300 mV.
    12) But if these readings are not showing properly that indicates the fault in the sensor.
    13) The secondary O2 sensor is located after the catalytic converter. The procedure to measure secondary O2 sensor is exactly the same like how you measured the primary O2 sensor.
    14) The secondary oxygen sensor is located under the car.
    15) Put the car on jack stands on the rack, this will give you proper sensor location in the car.
    16) You can test secondary O2 sensor to conform the fault before replacing the O2 sensor.
    17) The cost of replacing the O2 sensor is near to $100.This cost is for if you do it yourself.
    This will help. Thanks.

    on Mar 22, 2010 | Bentley Arnage Cars & Trucks

    Tip

    How to Test the O2 Sensor of Cadillac Devile car?


    O2 sensor needs to be replaced when you get low gas mileage in car.
    So before replacing the sensor it needs to be tested.
    The procedure to test O2 sensor is as follows: ---
    1) First drive the vehicle for 15 minutes in normal temperature.
    2) Then Stop the vehicle in park mode and turn the engine off.
    3) You will see primary O2 sensor on the exhaust manifold, the manifold will be very hot to touch so take care.
    4) The function of O2 sensor in the car is to measure the amount of oxygen in car and then send that information to engine to adjust fuel pressure.
    5) Now to measure the O2 sensor reading. Carefully disconnect the wire at the O2 connector, and hook the positive lead of volt meter to the O2 sensor side of the connector and connect the positive lead of volt meter to harness side of the connector.
    6) In the O2 sensor you will notice two black wires that are not used for testing.
    7) Now before beginning the important part of the testing procedure, check out properly that wires of O2 sensor and wires of volt meter are not getting touch to any other metal part or the manifold.
    8) After checked and confirmed. Now start the car and see the voltage in engine idle position.
    9) The reading will go high or go low but the average reading that it should show is 500 mV.
    10) Now let the engine run and with engine running disconnect the fuel pressure regulator vacuum hose, and plug the hose with your finger.
    11) The 500 mV reading will go to 700-800 mV.now remove the finger the reading will fall low to 300 mV.
    12) But if these readings are not showing properly that indicates the fault in the sensor.
    13) The secondary O2 sensor is located after the catalytic converter. The procedure to measure secondary O2 sensor is exactly the same like how you measured the primary O2 sensor.
    14) The secondary oxygen sensor is located under the car.
    15) Put the car on jack stands on the rack, this will give you proper sensor location in the car.
    16) You can test secondary O2 sensor to conform the fault before replacing the O2 sensor.
    17) The cost of replacing the O2 sensor is near to $100.This cost is for if you do it yourself.
    This will help. Thanks.

    on Mar 22, 2010 | Cadillac DeVille Cars & Trucks

    1 Answer

    My 2002 ZX2 failed an emission test. An Autozone diagnostic test said it is possible an O2 sensor is faulty. If I have two o2 sensors, how do I know which one to replace?


    You have them tested, by a repair shop, that has the knowledge
    and proper test equipment.
    You never replace any part,based on a code alone
    The code you got, will indicate which sensor,but
    not that is bad,got to test

    Dec 02, 2010 | 2002 Ford ZX2

    2 Answers

    Need to pass emissions test, dianostic test - Catalyst efficiency blow threshold (bank 1) tried to order part - now I need to know if it pre or post, left or right Oxygen sensor, can it be determined by...


    Yes it can be determined by the DTC (Data Trouble code). If the DTC is P0420 (catalyst system efficiency below threshold Bank-1) then the side of the engine with the #1 spark plug and cylinder is always Bank-1, and the O2 sensor that monitors the catalyst efficiency is usually after or (post) of the catalytic converter.

    The #1 cylinder is located at the front spark plug on the right or the passenger side of the vehicle, so Bank-1 is on the right side of the vehicle, and the O2 sensor that monitors the catalyst efficiency should be located after or (post) of the catalytic converter. It would be the post right O2 sensor.

    There is also the possibility that the catalytic converter is actually starting to fail, and if changing the O2 sensor and clearing the DTC does not solve the problem them the catalytic converter is most likely faulty.

    Aug 12, 2010 | 2002 Jaguar X-Type

    Tip

    How to Test the O2 Sensor of Acura Integra car?


    O2 sensor needs to be replaced when you get low gas mileage in car.
    So before replacing the sensor it needs to be tested.
    The procedure to test O2 sensor is as follows: ---
    1) First drive the vehicle for 15 minutes in normal temperature.
    2) Then Stop the vehicle in park mode and turn the engine off.
    3) You will see primary O2 sensor on the exhaust manifold, the manifold will be very hot to touch so take care.
    4) The function of O2 sensor in the car is to measure the amount of oxygen in car and then send that information to engine to adjust fuel pressure.
    5) Now to measure the O2 sensor reading. Carefully disconnect the wire at the O2 connector, and hook the positive lead of volt meter to the O2 sensor side of the connector and connect the positive lead of volt meter to harness side of the connector.
    6) In the O2 sensor you will notice two black wires that are not used for testing.
    7) Now before beginning the important part of the testing procedure, check out properly that wires of O2 sensor and wires of volt meter are not getting touch to any other metal part or the manifold.
    8) After checked and confirmed. Now start the car and see the voltage in engine idle position.
    9) The reading will go high or go low but the average reading that it should show is 500 mV.
    10) Now let the engine run and with engine running disconnect the fuel pressure regulator vacuum hose, and plug the hose with your finger.
    11) The 500 mV reading will go to 700-800 mV.now remove the finger the reading will fall low to 300 mV.
    12) But if these readings are not showing properly that indicates the fault in the sensor.
    13) The secondary O2 sensor is located after the catalytic converter. The procedure to measure secondary O2 sensor is exactly the same like how you measured the primary O2 sensor.
    14) The secondary oxygen sensor is located under the car.
    15) Put the car on jack stands on the rack, this will give you proper sensor location in the car.
    16) You can test secondary O2 sensor to conform the fault before replacing the O2 sensor.
    17) The cost of replacing the O2 sensor is near to $100.This cost is for if you do it yourself.
    This will help. Thanks.

    on Mar 22, 2010 | Acura Integra Cars & Trucks

    3 Answers

    New o2 sensor went bad in 1 day after being


    The connections to the sensor is heater voltage which is +12 volts supplied by external (from the ECM) wiring from the battery, and the 0 to + 5 volt self-generated signal from the O2 sensor is an input to the ECM. Suggest that you find another mechanic that isn't intent on selling parts. Also suspect is the quality of the replacement O2 sensor. It would take a major disaster within the ECM to make an input connection turn into an output and would likely damage the O2 sensor almost immediately--not a day later. Hope this helps!

    Jul 19, 2010 | 2005 Dodge Grand Caravan

    1 Answer

    Don't know what type of sensor I need for my 93 Regal


    If your check engine light is on the computer in your car can give a code. Aamco will read your check engine light for free. Might need a repair manual to find out what code means (which o2 sensor). If check engine light is not on you will probably need to get each o2 sensor tested by a mechanic.

    Apr 02, 2009 | 1993 Buick Regal

    1 Answer

    O2 sensor 1996 volvo fail emission test


    If you have trouble codes stored in your cars computer for O2 sensors a fuse will not fix it. One or all of the O2's may need to be replaced. There are test that can be done to confirm which one.

    Jan 28, 2009 | 1996 Volvo 850

    1 Answer

    Chrysler LHS o2 sensor testing


    If u know u have a bad o2. I guess u must have used a scanner or equivalent. There are 4 o2s on LHS. The way u can tell the difference is by the # sequence that the failure code is giving u. For example the o2s on the right side are even # on the left odd #. Pre cat is 1 after cat is 2. So if u have bad 2/2 Than u know it's right rear or a bad 1/1 is left front ect ect. First make sure u have the right code. With out a scanner. it can be done with a volt meter or a vantage, but it's a heck of a lot easier pulling the codes.

    May 15, 2008 | 1997 Chrysler LHS

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