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Error P0420

  • 11-11-2015 6:36pm
    #1
    vandriver
    Registered Users, Registered Users 2 Posts: 3,472 ✭✭✭


    Is my cat fooked?
    Video is of the torque app showing the two oxygen sensors.
    If it is:
    1. How much for a new one Fabia 2 1.2 htp
    2.How long should the previous spurious one have lasted?
    https://youtu.be/ZfbHRREvCb4


Comments

  • #2
    Atlantic Dawn
    Registered Users, Registered Users 2 Posts: 84,761 ✭✭✭✭Atlantic Dawn
    M


    Could be rear oxygen sensor or a simple leak in the exhaust, I would check these first before replacing the Cat. Listen under the car at the exhaust at rougly under drivers/passengers seat for a leak.


  • #3
    colm_mcm
    Registered Users, Registered Users 2 Posts: 73,520 ✭✭✭✭colm_mcm


    Do you know why the original cat needed replacing?


  • #4
    vandriver
    Registered Users, Registered Users 2 Posts: 3,472 ✭✭✭vandriver


    colm_mcm wrote: »
    Do you know why the original cat needed replacing?

    I never really got to the bottom of it.I know it involved 2 new O2 sensors and months of going into limp home mode.With the new cat,not a bother for 2 years until the engine light came on last week.


  • #5
    cletus
    Registered Users, Registered Users 2 Posts: 8,190 ✭✭✭cletus


    vandriver wrote: »
    I never really got to the bottom of it.I know it involved 2 new O2 sensors and months of going into limp home mode.With the new cat,not a bother for 2 years until the engine light came on last week.

    Spurious cats are, I think, known for not lasting as long as OEM. Mate of mine replaced his cat twice, both spurious, both only lasted 18 months


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