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Dash lights codes c1406 p0108 p0117 after strutt replacement

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by Dee/Rich Anderson, Apr 14, 2024.

  1. Dee/Rich Anderson

    Dee/Rich Anderson New Member

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    Help please. Head Gasket blew replaced the engine in a 2018 prius 4, 200 plus miles. Changed the strutts and the shocks now I have all kinds of dash lights, vehicle over heated once. Had auto zone run codes they came up as P0117 engine coolant temperature circuit low imput, P0108 manifold absolute/barometric pressure circuit high and C1406 open or short in front speed sensor LH circuit
     
    #1 Dee/Rich Anderson, Apr 14, 2024
  2. Dee/Rich Anderson

    Dee/Rich Anderson New Member

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    #2 Dee/Rich Anderson, Apr 15, 2024
  3. Dee/Rich Anderson

    Dee/Rich Anderson New Member

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    Up date. Had code checked today and only one code C1406 open or short in front speed sensor lh circuit. I think there is something lose somewhere near map sensor because I had them do the test 3 times the first time only code was c1406 them I unplugged I think it was the map sensor and of course received that error buy the other code went away.
     
    #3 Dee/Rich Anderson, Apr 15, 2024
  4. Mendel Leisk

    Mendel Leisk Senior Member

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    4th gens tend to blow head gaskets due to EHR (Exhaust Heat Recovery) system developing coolant leak, leading insufficient engine coolant and overheating. Did that happen in your case?

    Any more details on the replacement engine?

    The speed sensors on the side of the wheel bearing I think. And there’s a shield with an opening for the sensor, maybe misaligned?
     
    #4 Mendel Leisk, Apr 17, 2024
  5. Dee/Rich Anderson

    Dee/Rich Anderson New Member

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    2018 Prius
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    Four
    We don't know why the head gasket went bad thought just miles.

    What kind of information on the engine replacement. We did gasket masters.

    Do you have a picture of where the shield would be so it can be checked
     
    #5 Dee/Rich Anderson, Apr 19, 2024
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