1. Attachments are working again! Check out this thread for more details and to report any other bugs.

ICE always running even under 42mph

Discussion in 'Gen 2 Prius Technical Discussion' started by ih8spm, Sep 15, 2017.

  1. ih8spm

    ih8spm Junior Member

    Joined:
    Jul 27, 2017
    73
    28
    0
    Location:
    New York
    Vehicle:
    2006 Prius
    Model:
    N/A
    05 Prius, 225k miles with check engine light on for P0420. Brake light on also due to a leaking rear brake cylinder.

    I'm new to this prius world but from reading it appears my Prius never runs solely on battery even under 42mph. It will run in ICE immediately after 2-4 mpg unless I'm in a parking lot scenario. My trip data says I'm averaging 37mpg but from my fuel fill test I'm getting 41mpg. Was wondering if this is all normal? Thanks


    SM-G935P ?
     
    #1 ih8spm, Sep 15, 2017
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,693
    48,945
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    probably normal for a car with 225,000 miles. your battery is likely weak, and the computers are protecting it from going south altogether. might be a good time to start using a prolong charger.
     
    #2 bisco, Sep 15, 2017
    SFO likes this.
  3. ih8spm

    ih8spm Junior Member

    Joined:
    Jul 27, 2017
    73
    28
    0
    Location:
    New York
    Vehicle:
    2006 Prius
    Model:
    N/A
    That may be the case but I just bought this one and some of the cells were replaced previously. I did forget to mention I can never get to the green battery status so your probably still correct.

    SM-G935P ?
     
    #3 ih8spm, Sep 15, 2017
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,693
    48,945
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    yes, a rebuilt battery, while 'new to you', is still full of old cells. i might be wrong, it's just a thought based on common sense, not a proven fact.
    have you cleaned the battery cooling fan and intake grille?
     
    #4 bisco, Sep 15, 2017
  5. ih8spm

    ih8spm Junior Member

    Joined:
    Jul 27, 2017
    73
    28
    0
    Location:
    New York
    Vehicle:
    2006 Prius
    Model:
    N/A
    Yes the fan and intake were cleaned to a shine and sparkle. Going to get the torque pro app to check the cells.

    SM-G935P ?
     
    #5 ih8spm, Sep 15, 2017
    bisco likes this.
  6. ih8spm

    ih8spm Junior Member

    Joined:
    Jul 27, 2017
    73
    28
    0
    Location:
    New York
    Vehicle:
    2006 Prius
    Model:
    N/A
    Anything else I should check or is this just it for me?

    SM-G935P ?
     
    #6 ih8spm, Sep 16, 2017
  7. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,693
    48,945
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    you didn't get the triangle of death, so it might not be the battery. what are you reading codes with?
     
    #7 bisco, Sep 17, 2017
  8. ih8spm

    ih8spm Junior Member

    Joined:
    Jul 27, 2017
    73
    28
    0
    Location:
    New York
    Vehicle:
    2006 Prius
    Model:
    N/A
    Elm327 with torque app

    SM-G935P ?
     
    #8 ih8spm, Sep 17, 2017
  9. ih8spm

    ih8spm Junior Member

    Joined:
    Jul 27, 2017
    73
    28
    0
    Location:
    New York
    Vehicle:
    2006 Prius
    Model:
    N/A
    Update! I took the Prius for an 8 mile local ride down some pretty flat and downward sloping roads and I was able to achieve all electric mode under 42mph. I even saw my first green bar in the information center.

    SM-G935P ?
     
    #9 ih8spm, Sep 23, 2017
(You must log in or sign up to post here.)