1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Bank 2 sensor 2 issues

Discussion in '1st Gen Tundras (2000-2006)' started by zeerex99, Feb 20, 2020.

  1. Feb 20, 2020 at 3:54 AM
    #1
    zeerex99

    zeerex99 [OP] New Member

    Joined:
    Feb 20, 2020
    Member:
    #42873
    Messages:
    3
    Vehicle:
    03 TRD extended cab, 4WD, 4.7
    None
    Have owned and maintained the truck since new. In the process of some repairs (new struts, shocks, sway bar links, valve cover gaskets, driveshaft carrier bearing etc.

    My Bank 2 sensor 2 threw a P0430 code awhile back. After a few other things I finally put new Cats on it. The resonator pipie should have beed replace (bad O2 boss) but I was in a hurry.

    All ran fine for abour 200mi and through the same code. I reset it and back on after 30mi over and over.

    Thought? The right valve cover gasket has a good leak. Could this somehow contaminate the sensor from the outside?

    Changing gaskets today and trying a new sensor. And experience would be helpful.
     
    Tundra2 likes this.
  2. Feb 20, 2020 at 4:15 AM
    #2
    BubbaW

    BubbaW Saw it right off

    Joined:
    Aug 19, 2019
    Member:
    #34845
    Messages:
    1,731
    First Name:
    Bubba
    Vehicle:
    04 DC LTD 4X4 4.7 V8 DOHC
    T150 Fan
    The least costly is to swap downstream sensors and see if code changes to 420 but a new sensor definitely cheaper than replacing Cat.
     
    FrenchToasty and Tundra2 like this.
  3. Feb 20, 2020 at 4:17 AM
    #3
    Tundra2

    Tundra2 Zoinked

    Joined:
    Feb 10, 2019
    Member:
    #25875
    Messages:
    6,971
    Gender:
    Male
    First Name:
    Noah
    Western Kentucky
    Vehicle:
    '02 Tundra V6 SR5 '08 Sequoia V8 SR5
    Deer guard, LED everything.
    Make sure to clean off all residue of old seal. I wire brushed faces, and then vacuumed out tail pipe just in case anything got in there. I am struggling with P0420 code still.
     
    BubbaW likes this.
  4. Feb 20, 2020 at 4:25 AM
    #4
    zeerex99

    zeerex99 [OP] New Member

    Joined:
    Feb 20, 2020
    Member:
    #42873
    Messages:
    3
    Vehicle:
    03 TRD extended cab, 4WD, 4.7
    None
    It's got 2 new CATs. Should have replaced the resonator pipe at the same time (bad O2 boss). Jury rigged it, ran fine for 200 mile ans started throwind cones again. New resonator pipe and got a new sensor yesterday. We'll see.
     

Products Discussed in

To Top