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Intake temperature sensor

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by dfairch69, May 18, 2023.

  1. dfairch69

    dfairch69 Junior Member

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    I have a 2008 Prius and was wondering where the intake temperature sensor is located? I am doing annual tune up and came across this section on a forum talking about the intake temperature sensor and I have never changed it. I have changed the maf sensor but not this one. Thank you.
     
    #1 dfairch69, May 18, 2023
  2. ChapmanF

    ChapmanF Senior Member

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    It's combined with the MAF sensor (it's the bulbous thing you see on the side), so if you changed that, you changed 'em both.

    That said, I can't think offhand of many reasons it'd ever need to be changed. Nothing much happens to thermistors, that I know of.
     
    #2 ChapmanF, May 18, 2023
  3. SFO

    SFO Senior Member

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    Best to just clean it with "MAF cleaner", then attack the throttle bore and buttery fly valve with a toothbrush dipped in rubbing alcohol or vodka.
    Link to said section?
     
    #3 SFO, May 18, 2023
  4. dfairch69

    dfairch69 Junior Member

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    Thank you. I was thinking it was the maf sensor.
     
    #4 dfairch69, May 18, 2023
  5. dfairch69

    dfairch69 Junior Member

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    Thank you.
     
    #5 dfairch69, May 18, 2023
  6. ChapmanF

    ChapmanF Senior Member

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    Not uncommon. The mass airflow is sensed by the two very fine wires that you can barely see if you look deep into the tunnel in the sensor body.

    And then there's the bulbous thing right there in your face on the outside, which people often think is the MAF sensor, but it's the thermistor for the intake air temperature.
     
    #6 ChapmanF, May 18, 2023
  7. PriusCamper

    PriusCamper Senior Member

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    So that's what happened to my bottle of vodka...
     
    #7 PriusCamper, May 18, 2023
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