CATALYST P0420 CODE | FerrariChat
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CATALYST P0420 CODE

Discussion in '360/430' started by MARANELLONATION, Nov 30, 2014.

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  1. MARANELLONATION

    MARANELLONATION Karting

    Nov 22, 2006
    133
    North Andover Ma. 01845
    Full Name:
    Michael A. Ferrante
    #1 MARANELLONATION, Nov 30, 2014
    Has anyone thrown a check engine light and pulled this code ? Have there been any Cat failures with the Scuderia ? Code says Cat operating below efficiency on Bank 1. Any thoughts or comments would be appreciated
     
  2. greyboxer

    greyboxer F1 World Champ

    Dec 8, 2004
    12,671
    South East
    Full Name:
    Jimmie
    #2 greyboxer, Nov 30, 2014
    Its likely this code has come up before - try a search for previous solutions
     
  3. bowbells

    bowbells Formula Junior

    Jan 14, 2008
    353
    Guernsey
    Full Name:
    Arthur Dent
    #3 bowbells, Nov 30, 2014
    How long is this piece of string?
     
  4. gmani1082

    gmani1082 Rookie

    Nov 4, 2014
    28
    Pickering, Ontario
    Full Name:
    Ganesh
    #4 gmani1082, Dec 15, 2014
    see this code on regular cars all the time at my work, usually just a loose / worn seal - gas cap :) (folks tend to get a code shortly after they filled up) GL
     
  5. RedTaxi

    RedTaxi F1 Rookie
    Silver Subscribed

    Mar 1, 2012
    3,340
    New Zealand
    Full Name:
    Glen
    #5 RedTaxi, Dec 16, 2014
    Same code here but no cats in evidence. Read, clear, drive on!
     
  6. autowerks9

    autowerks9 Formula 3
    BANNED Rossa Subscribed

    Sep 1, 2009
    1,161
    North Wales, Pa.
    Full Name:
    David S.
    #6 autowerks9, Dec 16, 2014
    P0420 is a catalist inefficency code, Bank One, right side cylinder bank. The ECU is looking for a change in referance from the Fist O2 sensor to the Second O2 sensor, after the catalist. This shows the ECU that the catalist is converting the exhaust gasses. As the catalist becomes less efficent over time the light can illuminate. It can be caused by aftermarket calalist as they have a different efficency rate outside of the ECM profile. Or the catalist itself has deteriorated or is contaminated.

    A "gas cap" error is typically po440 (evap system leak ) or a po456 ( small evap system leak )

    David
     

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