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Discussion in '1st Gen. Tacomas (1995-2004)' started by sypher651, Aug 7, 2016.

  1. Aug 7, 2016 at 11:29 PM
    #1
    sypher651

    sypher651 [OP] Nothin' but trail lovin'!!

    Joined:
    Oct 3, 2015
    Member:
    #165699
    Messages:
    117
    Gender:
    Male
    Groveland, California
    Vehicle:
    1996 Tacoma 4x4 3rz
    I have some live data that I got using a bluetooth Lemur reader. I am trying to find out why my system is always running lean bank 1. Here is some info i can give. This is at wide open throttle. If you really need to know the after market parts i can list but it is a lot.

    image.jpg
     
  2. Aug 7, 2016 at 11:30 PM
    #2
    sypher651

    sypher651 [OP] Nothin' but trail lovin'!!

    Joined:
    Oct 3, 2015
    Member:
    #165699
    Messages:
    117
    Gender:
    Male
    Groveland, California
    Vehicle:
    1996 Tacoma 4x4 3rz
    This was another run also btw

    image.jpg
     
  3. Aug 8, 2016 at 9:34 AM
    #3
    tan4x4

    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
    I'm not sure if this will help you, but it seems to me that your timing advance seems low. I'm assuming this relates to ignition timing, and that you have a distributor (mine does not).

    My 3RZ, with automatic, runs perfectly. I checked my ignition timing, using my Ultragauge, just to have a baseline for the future, and these are my readings ( all at steady throttle, not wide open ) :

    Idling in neutral: 7-9
    Idling in Drive: 12-15
    20mph: 32
    40mph: 35
     

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