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2004 prius check engine light

Discussion in 'Gen 2 Prius Main Forum' started by vfx, Jul 31, 2015.

  1. vfx

    vfx New Member

    Joined:
    Jul 31, 2015
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    Location:
    california
    Vehicle:
    2004 Prius
    Model:
    N/A
    I have a 2004 with just over 250000 miles. Shes been a great car with minor issues. In the last month, I have seen the check engine light (mil) come on twice, but it goes away after a day or so after checking the gas cap and oil levels (both were right after a fill up). Yesterday, it happened again while I was driving. This tank is over half used...

    Going to take it in for a checkup, but does anyone have an idea what I may be looking at?

    Thanks
     
    #1 vfx, Jul 31, 2015
    Last edited: Jul 31, 2015
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
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    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    The catalytic converter may need replacement. That will be a relatively costly repair in California, well into four-digits, since aftermarket cc are not certified for use in CA.

    If you prefer not to guess, have the DTC read so that you will have a clue about what is wrong. Get Mini VCI if you wish to be self-sufficient in that area.
     
    #2 Patrick Wong, Jul 31, 2015
  3. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
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    Location:
    Los Angeles, CA
    Vehicle:
    2008 Prius
    Model:
    II
    if you're lucky, it could be a bad gas cap or oxygen sensor problem.
     
    #3 JC91006, Jul 31, 2015
  4. Beachbummm

    Beachbummm Senior Member

    Joined:
    Sep 12, 2013
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    Location:
    Florida
    Vehicle:
    2008 Prius
    Model:
    Five
    maybe the blinker fluid is low
     
    #4 Beachbummm, Jul 31, 2015
    usnavystgc likes this.
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