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Engine code #0420

Discussion in '2nd Gen Tundras (2007-2013)' started by Tundra 45, Nov 11, 2024.

  1. Nov 11, 2024 at 4:31 PM
    #1
    Tundra 45

    #1
    Tundra 45 [OP] New Member

    Joined:
    Oct 27, 2024
    Member:
    #124871
    Messages:
    2
    Gender:
    Male
    First Name:
    Dave
    Des Moines, Iowa
    Vehicle:
    2012 Tundra
    Air bags with remote, 10 ply tires, Bullydog GT gas, K&N high flow drop in air filter, throttle body air swirler
    I have a 2012 Tundra with a 5.7 flex fuel. It has been throwing a 0420 code. Any ideas of where to look for issue? Cats or sensors?
     
    Tundra 45, Nov 11, 2024
    #1
  2. Nov 12, 2024 at 9:14 AM
    #2
    blackdemon_tt

    #2
    blackdemon_tt Battery Slayer

    Joined:
    Feb 27, 2020
    Member:
    #43241
    Messages:
    3,049
    Gender:
    Male
    Vehicle:
    2007 5.7l Tundra DC SR5 long bed 2wd
    TRD Sway Bar, Roll covers USA bed cover
    Cheapest way to test them is to swap them with the one across. Bank 1 to Bank 2 and vice versa. If it remains in the same place, then it's your cat.
     
    blackdemon_tt, Nov 12, 2024
    #2
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