1. Welcome to Tacoma World!

    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 Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

knock sensor

Discussion in '1st Gen. Tacomas' started by scottyp, Dec 16, 2008.

  1. Dec 16, 2008 at 6:46 PM
    #1
    scottyp

    scottyp [OP] Member

    Joined:
    Dec 16, 2008
    Member:
    #11640
    Messages:
    5
    Gender:
    Male
    Vehicle:
    98 tacoma
    i have 1998 3.4 v6 cel say's knock sensor was going to try and change the pigtil frist does anyone have any thing to add never change one before?????
     
  2. Dec 16, 2008 at 6:48 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    104,122
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Welcome to Tacoma World!

    What code are you getting from the CEL?
     
  3. Dec 16, 2008 at 6:52 PM
    #3
    HerNameIsLucy

    HerNameIsLucy I miss Lucy. :-(

    Joined:
    Jul 31, 2008
    Member:
    #8256
    Messages:
    3,047
    Gender:
    Male
    First Name:
    John
    Equador. Don't know why.
    Vehicle:
    RIP Lucy.
    She's gone but not forgotten.
    the knock sensor(s) are normally open circuits. so you'd have to have a short in the pigtails or the wiring between them and the ecm to have that be the problem.

    have you heard / felt a lot of pre-ignition going on?
     
  4. Dec 16, 2008 at 6:55 PM
    #4
    SUPMO72

    SUPMO72 Well-Known Member

    Joined:
    Nov 2, 2008
    Member:
    #10426
    Messages:
    64
    Gender:
    Male
    Cleveland Ohio
    Vehicle:
    09 MGM Reg 4x4 5spd
    OEM Fog Lights, Tailgate Lock, Color matched OEM Grill, GT seat covers, Undercover bed cover, OEM back up camera
    The pig tails get brittle from all the heat. That would be my guess. I have only see them go bad if someone has been in there before, like if the headgaskets were done. If you have to put sensors in make sure you tighten them to the correct spec. You dont want to over tighten them..
     
  5. Dec 16, 2008 at 7:04 PM
    #5
    scottyp

    scottyp [OP] Member

    Joined:
    Dec 16, 2008
    Member:
    #11640
    Messages:
    5
    Gender:
    Male
    Vehicle:
    98 tacoma
    code p0325
     
  6. Dec 16, 2008 at 7:07 PM
    #6
    scottyp

    scottyp [OP] Member

    Joined:
    Dec 16, 2008
    Member:
    #11640
    Messages:
    5
    Gender:
    Male
    Vehicle:
    98 tacoma
    is this under the air plantum? how hard would it be to change
     
  7. Dec 16, 2008 at 7:37 PM
    #7
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    104,122
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
  8. Dec 16, 2008 at 10:41 PM
    #8
    scottyp

    scottyp [OP] Member

    Joined:
    Dec 16, 2008
    Member:
    #11640
    Messages:
    5
    Gender:
    Male
    Vehicle:
    98 tacoma
    thanks for the help
     
To Top