New catalytic converter, lost 10 mpg

Discussion in 'Gen 2 Prius Fuel Economy' started by JC91006, Nov 8, 2015.

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  1. Dion Kraft

    Dion Kraft Member

    Joined:
    Nov 16, 2015
    272
    79
    1
    Location:
    Washington, UT
    Vehicle:
    2004 Prius
    Model:
    Two
    Many times if the sensors are the same you can swap them out and see the efficiency of their operation using a scan tool. You can also use a DVOM as well to to check the efficiency at the component level. I use a Fluke 98 and Snap on Solus Ultra for those jobs. Its always better to check the cheapest component instead of replacing the biggest cost: The CAT to be sure. If the same O2 sensor is used buy one and check before and after positions of the cat to compare. In a setting where the owner is not doing the work they will almost always look for the biggest component for profit. Thats why the auto industry gets a bad rap in regards to repair. Some states don't even have laws where a cap on the max price for repair is not agreed upon. But I'm getting off base here - my bad...
     
    #21 Dion Kraft, Dec 9, 2015
  2. Mochabuzz

    Mochabuzz Junior Member

    Joined:
    Jun 21, 2013
    46
    12
    0
    Location:
    SoCal
    Vehicle:
    2007 Prius
    Model:
    ----USA----
    How many miles does your car have on it?
     
    #22 Mochabuzz, Mar 21, 2016
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