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

Combination of Error Codes

Discussion in 'Technical Chat' started by brogers, Jul 9, 2010.

  1. Jul 9, 2010 at 12:26 PM
    #1
    brogers

    brogers [OP] New Member

    Joined:
    Jul 9, 2010
    Member:
    #39974
    Messages:
    3
    Gender:
    Male
    Atlanta
    Vehicle:
    01 4WD Tacoma 4cyl
    Any ideas about what may be going on here? Thanks for any help!

    2001 Toyota Tacoma 4WD, 4cyl 2.7L, 110 K miles

    The check engine light came on -- codes were P0125 and P1135. I reset the light by disconnecting the battery cable and drove a couple of miles. When the light came back on, a new code appeared P0171, the other codes did not come back up.

    The following was done:
    1. Removed and replaced spark plugs
    2. Cleaned the MAF sensor
    3. Replaced the air filter
    4. Reset the light

    Then I drove the truck, the light came back on, one code: P0125

    1. Replaced the thermostat (actually looked fine)
    2. Replaced the ECT sensor (could that have been in a tougher place to get to?)
    3. Refilled the coolant
    4. Reset the light

    Then drove the truck -- the light came back on, this time only P0171.

    1. Checked for coolant leaks
    2. Found that I had knocked the vacuum line off from the air intake, reconnected it.
    3. Reset the light

    Drove the truck, light came back on. This time all three codes came up: P0125, P1135, P0171.

    Any suggestions for the next step?
     
  2. Jul 9, 2010 at 12:34 PM
    #2
    98tacoma27

    98tacoma27 :POOPCORN: Thor

    Joined:
    Dec 18, 2008
    Member:
    #11714
    Messages:
    48,249
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
    Replaced the AFR sensor (Denso 234-9002)

    $114 at Rockauto
     
  3. Jul 9, 2010 at 12:37 PM
    #3
    98tacoma27

    98tacoma27 :POOPCORN: Thor

    Joined:
    Dec 18, 2008
    Member:
    #11714
    Messages:
    48,249
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
  4. Jul 9, 2010 at 3:23 PM
    #4
    brogers

    brogers [OP] New Member

    Joined:
    Jul 9, 2010
    Member:
    #39974
    Messages:
    3
    Gender:
    Male
    Atlanta
    Vehicle:
    01 4WD Tacoma 4cyl
    I suspected that's what it would take -- thanks!! That will be my next step.
     
To Top