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Prius Shake when coming off idle, and/or at low RPM

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by joellecool, Sep 4, 2024 at 10:20 PM.

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  1. joellecool

    joellecool Junior Member

    Joined:
    Jan 13, 2018
    20
    5
    0
    Location:
    Washington, DC
    Vehicle:
    2007 Prius
    Model:
    N/A
    I have 2012 that recently started shaking at low RPM and threw these codes:
    • P0301 - Cylinder 1 Misfire Detected
    • P0A0F - Engine Failed to Start
    • C1464 - Front Speed Sensor RH Circuit
    • C1465 - Front Speed Sensor LH Circuit
    A bit more about the car:
    • Water pump was recently replaced in August 2024
    • Thermostat was recently replaced in August 2024.
    • Has about 260K Miles
    Before those 2 above were replaced, it would have the following symptons:
    • Orange Triangle
    • Stopped moving. Symbol of wheel with exclamation mark appeared
    • Coolant mostly empty and or dark. <------- I had put K-Seal when I replaced the water pump in October 2023
    These were the codes that showed before I replaced the Water Pump:
    • P261B - Engine Coolant Pump 'B' Control Malfunction
    • P0A0F - Engine Failed to Start
    • C1259 - HV/EV Control System Regenerative Malfunction
    • C1310 - HV/EV System Malfunction

    ------------

    What do you recommend that I do?
     
    #1 joellecool, Sep 4, 2024 at 10:20 PM
  2. MAX2

    MAX2 Member

    Joined:
    Aug 12, 2024
    244
    52
    5
    Location:
    Third Rock from the Sun
    Vehicle:
    2007 Prius
    Model:
    N/A
    P0301
    Misfiring in a cylinder can be due to a number of reasons.
    Coolant entering the cylinder through a ruptured head gasket.
    Malfunction of spark plugs and ignition coil, incorrectly adjusted fuel and air supply system.

    Have you ever cleaned the EGR system?
    How often do you check the coolant level in the engine?

    C1464
    C1465

    These errors may have subcodes that will indicate problem areas.
    Specify whether the codes are frozen or current?
    Do these error codes appear again when the DTC is reset?

    Are there any signs of rodents under the hood of the engine compartment?
    C1464/C1465 ABS code, ABS, Brake lights on and no speed | PriusChat
     
    #2 MAX2, Sep 5, 2024 at 4:18 AM
    Last edited: Sep 5, 2024 at 4:47 AM
  3. ASRDogman

    ASRDogman Senior Member

    Joined:
    May 29, 2018
    6,217
    3,325
    0
    Location:
    Florida
    Vehicle:
    2010 Prius
    Model:
    Two
    Head gasket failed, last year. Because you put in the clogger stuff,
    you'll need a new radiator, heater core, water pump and thermostat and will
    still need to flush out the coolant system, including the head, and pre heater
    under the car through the exhaust....

    The "C1464 and 5" codes are for the ABS system I believe.

     
    #3 ASRDogman, Sep 5, 2024 at 5:42 AM
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