1997 Chrysler Intrepid Check EngineLlight

Discussion in 'General Motoring' started by Don Farrow, Jun 29, 2004.

  1. Don Farrow

    Don Farrow Guest

    I have had to get the Oxygen Sensor code reset twice on my 3.3 Intrepid .The
    problem is that their is two Oxygen Sensors on the car how can to tell which
    one is bad....One person told me not to worry about changing the sensor
    unless I had to have a E Test

    Is their any diagrams of where the Oxygen Sensors are located on the car....

    Thanks
     
    Don Farrow, Jun 29, 2004
    #1
  2. Don Farrow

    Steve B. Guest

    Each sensor has its own codes. Find out what the code is and you know
    what sensor is bad (or atleast where the problem is showing up). You
    do want to get the problem resolved for better fuel economy.

    Steve B.
     
    Steve B., Jun 29, 2004
    #2
  3. Don Farrow

    Neil Nelson Guest

    Resetting the code does little to correct the original fault that
    caused the light to illuminate to begin with.
    Actually there are four oxygen sensors on your car; left
    upstream, right upstream, left downstream, right downstream.
    Identifying a faulty oxygen sensor requires code retrieval with a
    compatible scan tool and/or circuit waveform examination with a
    labscope.
    That would be a person that you shouldn't listen to anymore.
    A shorted oxygen sensor can and will lead to over fueling of the
    engine, flooding over of the sparkplugs and/or cylinder wall and
    piston/ring damage from the raw gasoline washing the lubricant
    off of the cylinder walls/out of the rings.
    Then again, given the approach so far, the "oxygen sensor codes"
    you mention could be caused by just about anything.
    Two will be in the exhaust (each side) between the engine and the
    catalytic converters, two will be in the exhaust pipes after the
    catalytic convertors.

    FWIW, flicking the ignition on and off three times [to extract
    codes] will be of absolutely zero use in locating the problem.
    You're going to need the services of someone with the proper
    equipment and the necessary training.
     
    Neil Nelson, Jun 29, 2004
    #3
  4. Don Farrow

    Don Farrow Guest

    What do you suggest.. What do you think would cause the oxygen code to show
    up....If I change the sensors will that solve the problem..

    Don

     
    Don Farrow, Jun 29, 2004
    #4
  5. Don Farrow

    Steve B. Guest

    I'm not Neil but I would suggest you find out what code you have
    first. AutoZone will read them for free if you have their store in
    your area. Replace the oxygen sensor that the code indicates is bad
    and go from there if the problem isn't resolved.

    Steve B.
     
    Steve B., Jun 29, 2004
    #5
  6. Don Farrow

    Neil Nelson Guest

    Seek the services of someone with the proper equipment and the
    necessary training.
    There are a multitude of oxygen sensor codes and a multitude of
    problems that can cause them to set;
    Opens, shorts, slow response time, lean, rich, cat-con efficiency
    to name but a few.
    That's like asking a doctor if removing your tonsils will cure
    your sore throat.

    Finding the cause of the problem and correcting it will solve the
    problem. The first step in finding the cause is to extract the
    manufacturer specific trouble codes from the PCM.
     
    Neil Nelson, Jun 29, 2004
    #6
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