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trouble code PO402 Tacoma Prerunner 2001 2.7 engine

Discussion in '1st Gen. Tacomas (1995-2004)' started by Dean Cuizon, May 4, 2015.

  1. May 4, 2015 at 5:25 PM
    #1
    Dean Cuizon

    #1
    Dean Cuizon [OP] New Member

    Joined:
    May 4, 2015
    Member:
    #154551
    Messages:
    1
    Vehicle:
    2001 Prerunner Tacoma 2.7
    whats the possible problem. It appears when its cold
     
    Dean Cuizon, May 4, 2015
    #1
  2. May 4, 2015 at 7:08 PM
    #2
    ToyoTaco02

    #2
    ToyoTaco02 Well-Known Member

    Joined:
    Jan 21, 2011
    Member:
    #49667
    Messages:
    486
    Gender:
    Male
    First Name:
    Scott
    Decatur,IL
    Vehicle:
    02 PreRunner DC 2.7L
    OME 881 1/4" top plate spacer OME Dakars OME Nitrochargers Light Racing UCA
    Use the search button!!!! You need to be looking for a bad cat conv., exhaust leak, maybe a bad rear O2 sensor. Many possibilities.
     
    ToyoTaco02, May 4, 2015
    #2
  3. May 5, 2015 at 7:25 AM
    #3
    tan4x4

    #3
    tan4x4 Well-Known Member

    Joined:
    Nov 30, 2011
    Member:
    #67982
    Messages:
    3,807
    Gender:
    Male
    First Name:
    Rick
    Folsom, CA
    Vehicle:
    99 Tacoma EC 4x4 2.7L Auto
    Bilsteins, OME 881's, 3-leaf AAL, Detroit TruTrac, Tundra brake swap, Michelin LTX AT2, Tranny skidplate, TC skidplate, CBI rear bumper, TG sliders, UltraGauge, PowerTank, Reverse Camera
    "P0402 - Exhaust Gas Recirculation Excessive Flow Detected"

    Are you sure it isn't the P0420? That is a more common error code, relating the the CAT.
     
    tan4x4, May 5, 2015
    #3
  4. May 5, 2015 at 2:01 PM
    #4
    Deerhunter13

    #4
    Deerhunter13 New Member

    Joined:
    Apr 8, 2015
    Member:
    #152809
    Messages:
    3
    Gender:
    Male
    First Name:
    James
    Alabama
    Vehicle:
    2004 Tacoma Extra Cab Pre-Runner
    2" lift
    Check the hose that plugs in to a vacuum valve on the right side and crosses over(attaches to radiator) and ends up plugging into the intake housing(airfilter)
     
    Deerhunter13, May 5, 2015
    #4
  5. May 5, 2015 at 2:03 PM
    #5
    nonohmic

    #5
    nonohmic Well-Known Member

    Joined:
    Dec 22, 2012
    Member:
    #93526
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    Gender:
    Male
    enjoy the warm basking warming glow of that little light
     
    nonohmic, May 5, 2015
    #5

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