Question about 2001 Hyundai Elantra

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Service Engine soon light Code P0133

Hyundai Elantra 2001. The service engine light is on. Used code reader
and found code P0133. Repalced oxygen sensor twice. P0133 code reades Oxygen Sensor Circuit Slow response (Bank 1 Sensor 1)

How do i fix?

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  • mightymag Dec 11, 2008

    I have replaced the o2 sensor twice with new o2's and erased codes. The light continues to come on with the same code.

  • Anonymous Mar 12, 2014

    code p0133 keeps coming up after replacing the cat and the 02 sensor

  • Anonymous Mar 13, 2014

    engine ligth in p0133 sensor nedd

  • Anonymous Mar 29, 2014

    My oxygen sensor & catalyst sensors won't come on what do I do

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I just came from an Autozone, and then spoke with 2 Hyundai dealership service departments and they all three stated the P0113 code is the Intake Air Temperature sensor (IAT, also referred to as the Mass Air Pressure - MAP - sensor) on the engine, not an O2 sensor found in the exhaust system.

Posted on May 27, 2009

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The code in question was P0133, not P0113.

Posted on Jul 25, 2009

  • joriki Jul 25, 2009

    no comment.

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  • Hyundai Master
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In most cases this means the O2 sensor is defective.

Posted on Dec 11, 2008

  • yadayada
    yadayada Dec 11, 2008

    I said the most common cause, without a trip to the dealer that is what I would do. good luck my friend.

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You would have to know the voltage and resistance values of the 02's circuit.could be a nick are sharp bend in the wire harness feeding the sensor and or corroded and improperly seated pins in the harness.

Posted on Jul 28, 2009

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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.
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