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Head Gasket and P0016

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Alberttttt, Sep 2, 2024 at 10:06 PM.

  1. Alberttttt

    Alberttttt New Member

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    Vehicle:
    2014 Prius
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    Four
    Hi everyone I just did my headgasket as I experienced the notorious shaking and have been using this forum as a great resource for it.

    The car is running great however, I have a check engine light for P0016, I cleared twice and it came back twice so it must be a real thing.

    From my research it seems that it's possible that my timing chain skipped a tooth. Does anyone know of an easy way to check if this is correct or if it is something else?

    Is the only way to make sure it didn't skip a tooth is to pull the timing chain cover off and re-align it? Any advice for those who've experienced this would be greatly appreciated!

    Car runs great other wise.
     
    #1 Alberttttt, Sep 2, 2024 at 10:06 PM
  2. MAX2

    MAX2 Member

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    P0016 - Deviation in crankshaft position sensor signal and camshaft position sensor signal (2 trip detection logic)
    How did you identify and find this code?
     
    #2 MAX2, Sep 4, 2024 at 2:24 AM
  3. Mendel Leisk

    Mendel Leisk Senior Member

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    If it were off a tooth would it run rough? Possible something disconnected?
     
    #3 Mendel Leisk, Sep 4, 2024 at 8:09 AM
  4. ASRDogman

    ASRDogman Senior Member

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    How smooth is the engine running? If it's running well, the chain is likely correct.
    It doesn't just suddenly jump a tooth unless the tension fails, or something else fails.
    You can pull the valve cover off, put the engine at TDC(for intake) and check the postion
    of the cams. No, the colored link likely won't be in the picture, unless you are really lucky!
    If the cam sprockets are in the correct postion, I would suspect the cam and/or crank sensor(s).

    But since this appeared after replacing the head gasket, it could be a loose connection, or broken
    wire? You might want to clean the connections also.


     
    #4 ASRDogman, Sep 4, 2024 at 9:15 AM
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